Postscript, try #2
Nathaniel Borenstein <nsb@thumper.bellcore.com> Tue, 14 May 1991 17:47 UTC
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Date: Tue, 14 May 1991 13:35:55 -0400
From: Nathaniel Borenstein <nsb@thumper.bellcore.com>
Message-Id: <9105141735.AA03205@greenbush.bellcore.com>
To: NED@hmcvax.claremont.edu, gvaudre@NRI.Reston.VA.US, MRC@cac.washington.edu, keld@dkuug.dk, KLENSIN@infoods.mit.edu, erik@sra.co.jp
Subject: Postscript, try #2
Cc: nsb@thumper.bellcore.com
Content-Type: postscript
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%%CreationDate: Tue May 14 13:21:57 1991
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4048(has)X
720 2208(been)N
926(changed)X
1271(to)X
1370(require)X
1667(an)X
1782(RFC.)X
720 2432(The)N
953("Encoded-Variable")X
1815(stuff)X
2074(has)X
2285(been)X
2550(elminated,)X
3038(in)X
3196(favor)X
3482(of)X
3646(Content-type:)X
720 2544(Message/charset)N
720 2768(Content-Encoding)N
1472(has)X
1646(been)X
1874(changed)X
2242(to)X
2364(Content-TransferEncoding.)X
3491(The)X
3688(hexadecimal)X
720 2880(encoding)N
1099(has)X
1253(been)X
1461(eliminated,)X
1919(and)X
2084(some)X
2313(prose)X
2547(about)X
2787(the)X
2931(need)X
3139(for)X
3276(a)X
3344(compressed)X
3823(encoding)X
720 2992(has)N
872(been)X
1078(added.)X
720 3216(The)N
894(base64)X
1185(encoding)X
1562(has)X
1714(added)X
1968(",")X
2094(as)X
2198(a)X
2265(way)X
2449(to)X
2548(specify)X
2850(portable)X
3190(end-of-lines.)X
720 3440(The)N
894(quoted-printable)X
1555(encoding)X
1932(has)X
2084(changed)X
2429("&")X
2606(and)X
2769("\\")X
2898(to)X
2998("=")X
3155(and)X
3319(":")X
3449(for)X
3586(portability,)X
4037(and)X
720 3552(has)N
872(added)X
1126(some)X
1353(rules)X
1564(\(and)X
1759(clari\256ed)X
2099(others\))X
2390(regarding)X
2783(CRLF)X
3047(and)X
3210(trailing)X
3513(white)X
3751(space.)X
720 3776(Two)N
920(new)X
1104(optional)X
1444(header)X
1725(\256elds,)X
1981(Content-ID)X
2443(and)X
2606(Content-Description,)X
3440(have)X
3646(been)X
3852(de\256ned.)X
720 4000(Multipart)N
1139(messages:)X
1608(The)X
1813(de\256nition)X
2237(has)X
2420(changed)X
2796(so)X
2936(that)X
3137(body-parts)X
3604(are)X
3778(no)X
3930(longer)X
720 4112(messages,)N
1139(though)X
1438(the)X
1588(syntax)X
1871(is)X
1966(the)X
2115(same.)X
2392(A)X
2492(new)X
2683(distinguished)X
3227(closing)X
3536(delimiter)X
3916(is)X
4011(now)X
720 4224(required.)N
1096(The)X
1277(content-type)X
1790(for)X
1933(multipart)X
2318(can)X
2483(now)X
2680(specify)X
2990(a)X
3065(character)X
3451(set,)X
3614(which)X
3881(made)X
4122(it)X
720 4336(seem)N
943(reasonable)X
1380(to)X
1480(reinstate)X
1831(the)X
1973(notion)X
2243(of)X
2347(a)X
2414(text)X
2583(pre\256x)X
2831(&)X
2930(post\256x)X
3215(in)X
3314(the)X
3456(speci\256ed)X
3822(character)X
720 4448(set.)N
902(\(US-centrism)X
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1623(a)X
1693(major)X
1945(criticism)X
2310(of)X
2417(earlier)X
2691(proposals)X
3086(to)X
3188(allow)X
3429(text)X
3601(in)X
3703(the)X
3849(pre\256x)X
4101(&)X
720 4560(post\256x.\))N
720 4784(Added)N
1013(a)X
1093(new)X
1290(notion)X
1574(of)X
1692("RFC-XXXX-compliant")X
2715(implementations,)X
3420(de\256ning)X
3773(a)X
3854(minimal)X
720 4896(subset)N
984(to)X
1083(be)X
1198(implemented)X
1726(to)X
1825(earn)X
2015(such)X
2215(a)X
2282(label.)X
3 p
%%Page: 3 3
12 s 0 xH 0 xS 1 f
2368 400(-)N
2424(3)X
2496(-)X
720 688(Network)N
1080(Working)X
1446(Group)X
1715(--)X
1803(Request)X
2137(for)X
2273(Comments:)X
2741(XXXX)X
16 s
1332 944(M)N
1446(echanism)X
1931(s)X
2013(for)X
2195(Specifying)X
2783(and)X
3000(Describing)X
1448 1088(the)N
1637(Form)X
1915(at)X
2040(of)X
2179(Internet)X
2611(M)X
2725(essage)X
3092(Bodies)X
2 f
12 s
1850 1344(Nathaniel)N
2254(Borenstein,)X
2719(Bellcore)X
2062 1456(Ned)N
2241(Freed,)X
2519(Innosoft)X
2254 1680(May)N
2449(1991)X
3 f
14 s
600 1920(Status)N
928(of)X
1050(This)X
1289(M)X
1395(emo)X
1 f
12 s
720 2160(This)N
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1341(suggests)X
1701(extensions)X
2142(to)X
2252(the)X
2405(RFC)X
2621(822)X
2800(message)X
3162(representation)X
3744(protocol)X
4101(to)X
720 2272(allow)N
984(multi-part)X
1419(textual)X
1731(and)X
1919(non-textual)X
2407(messages)X
2819(to)X
2943(be)X
3083(represented)X
3576(and)X
3764(exchanged)X
720 2384(without)N
1043(loss)X
1221(of)X
1330(information.)X
1838(Discussion)X
2288(and)X
2456(suggestions)X
2933(for)X
3075(improvements)X
3656(are)X
3804(welcome.)X
720 2496(This)N
917(memo)X
1184(does)X
1386(not)X
1535(specify)X
1839(an)X
1956(Internet)X
2282(standard,)X
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2807(it)X
2887(is)X
2977(intended)X
3335(to)X
3436(be)X
3553(a)X
3622(step)X
3803(towards)X
4133(a)X
720 2608(standard.)N
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1369(draft)X
1603(document)X
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2238(be)X
2382(submitted)X
2815(to)X
2943(the)X
3114(RFC)X
3348(editor)X
3626(as)X
3759(a)X
3855(protocol)X
720 2720(speci\256cation.)N
1318(Distribution)X
1845(of)X
1987(this)X
2188(memo)X
2491(is)X
2617(unlimited.)X
3097(Please)X
3405(send)X
3643(comments)X
4101(to)X
720 2832(Nathaniel)N
1119(Borenstein)X
1560(<nsb@thumper.bellcore.com>)X
3 f
14 s
600 3072(Table)N
901(of)X
1023(Contents)X
1 f
12 s
720 3312(Introduction)N
720 3424(The)N
894(Content-Type)X
1453(Header)X
1755(Field)X
720 3536(The)N
894(Content-TransferEncoding)X
1950(Header)X
2252(Field)X
864 3648(Quoted-Printable)N
1551(Content-TransferEncoding)X
864 3760(Base64)N
1171(Content-TransferEncoding)X
720 3872(Additional)N
1156(Optional)X
1517(Content-)X
1878(Header)X
2180(Fields)X
864 3984(Optional)N
1225(Content-ID)X
1687(Header)X
1989(Field)X
864 4096(Optional)N
1225(Content-Description)X
2035(Header)X
2337(Field)X
864 4208(Optional)N
1225(Content-Size)X
1752(Header)X
2054(Field)X
720 4320(RFC-XXXX)N
1233(Compliance)X
720 4432(Summary)N
720 4544(Acknowledgements)N
720 4656(References)N
720 4768(Appendix)N
1123([APP-CONTENTTYPES])X
2159(--)X
2247(Partial)X
2523(List)X
2697(of)X
2801(Prede\256ned)X
3236(Content-Type)X
3795(Values)X
720 4880(Appendix)N
1123([APP-TEXT])X
1664(--)X
1752(The)X
1926(TEXT)X
2196(Content-type)X
2723(and)X
2886(the)X
3028(MAILASCII)X
3547(Character)X
3946(Set)X
720 4992(Appendix)N
1123([APP-MULTIPART])X
1967(--)X
2055(The)X
2229("Multipart")X
2695(Content-Type)X
720 5104(Appendix)N
1123([APP-SIMPLE])X
1759(--)X
1871(Simple)X
2168(Non-ASCII)X
2639(Text)X
2840(Example)X
720 5216(Appendix)N
1123([APP-COMPLEX])X
1876(--)X
1964(A)X
2057(Complex)X
2434(Multipart)X
2822(Example)X
4 p
%%Page: 4 4
12 s 0 xH 0 xS 1 f
2368 400(-)N
2424(4)X
2496(-)X
3 f
14 s
720 704(Introduction)N
1 f
12 s
720 944(Since)N
971(its)X
1099(publication)X
1570(in)X
1682(1982,)X
1935(RFC)X
2153(822)X
2335([RFC-822])X
2794(has)X
2960(de\256ned)X
3281(the)X
3437(standard)X
3801(format)X
4096(of)X
720 1056(textual)N
1009(mail)X
1207(messages)X
1596(on)X
1718(the)X
1862(Internet.)X
2236(Its)X
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2670(has)X
2823(been)X
3030(such)X
3231(that)X
3401(the)X
3544(RFC)X
3750(822)X
3919(format)X
720 1168(has)N
885(been)X
1104(adopted,)X
1470(wholly)X
1774(or)X
1891(partially,)X
2274(well)X
2477(beyond)X
2797(the)X
2952(con\256nes)X
3309(of)X
3426(the)X
3581(Internet)X
3919(and)X
4096(of)X
720 1280(SMTP)N
997(transport,)X
1390(as)X
1497(de\256ned)X
1806(by)X
1928(RFC)X
2135(821)X
2305([RFC-821].)X
2800(As)X
2932(the)X
3076(format)X
3359(has)X
3513(seen)X
3710(wider)X
3955(use,)X
4133(a)X
720 1392(number)N
1038(of)X
1142(limitations)X
1579(have)X
1785(become)X
2109(increasingly)X
2604(problematic)X
3089(for)X
3225(the)X
3367(user)X
3551(community.)X
720 1616(RFC)N
955(822)X
1153(was)X
1356(intended)X
1742(to)X
1871(specify)X
2203(a)X
2300(format)X
2611(for)X
2777(text)X
2976(messages.)X
3441(As)X
3601(such,)X
3855(non-text)X
720 1728(messages,)N
1140(such)X
1348(as)X
1460(multimedia)X
1932(messages)X
2327(that)X
2504(might)X
2761(include)X
3077(audio)X
3323(or)X
3435(images,)X
3764(are)X
3914(simply)X
720 1840(not)N
868(mentioned.)X
1324(Even)X
1547(in)X
1647(the)X
1790(case)X
1981(of)X
2086(text,)X
2280(however,)X
2660(RFC)X
2866(822)X
3035(is)X
3125(inadequate)X
3569(for)X
3707(the)X
3851(needs)X
4096(of)X
720 1952(email)N
978(users)X
1218(whose)X
1506(languages)X
1934(require)X
2250(the)X
2411(use)X
2582(of)X
2705(character)X
3101(sets)X
3287(richer)X
3554(than)X
3762(US)X
3926(ASCII)X
720 2064([REF-ANSI].)N
1286(For)X
1466(mail)X
1685(containing)X
2139(audio,)X
2424(video,)X
2709(Japanese)X
3098(text,)X
3315(or)X
3443(even)X
3673(text)X
3866(in)X
3989(most)X
720 2176(European)N
1113(languages,)X
1546(RFC)X
1751(822)X
1919(does)X
2119(not)X
2266(specify)X
2568(enough)X
2875(to)X
2974(permit)X
3250 0.1953(interoperability.)AX
720 2400(One)N
912(of)X
1024(the)X
1174(notable)X
1491(limitations)X
1937(of)X
2050(RFC)X
2264(821/822)X
2612(based)X
2864(mail)X
3069(systems)X
3406(is)X
3503(the)X
3654(fact)X
3832(that)X
4010(they)X
720 2512(limit)N
928(the)X
1071(contents)X
1417(of)X
1522(electronic)X
1928(mail)X
2124(messages)X
2511(to)X
2610(relatively)X
2999(short)X
3215(lines)X
3421(of)X
3525(seven-bit)X
3902(ASCII.)X
720 2624(This)N
933(forces)X
1210(a)X
1295(user)X
1497(to)X
1614(convert)X
1945(any)X
2126(non-textual)X
2607(data)X
2811(that)X
2999(she)X
3170(may)X
3379(wish)X
3603(to)X
3721(send)X
3940(into)X
4133(a)X
720 2736(seven-bit)N
1098(ASCII)X
1373(representation)X
1944(before)X
2215(invoking)X
2581(her)X
2728(local)X
2940(mail)X
3136(UA)X
3298(\(User)X
3535(Agent)X
3794(program\).)X
720 2848(Examples)N
1140(of)X
1260(such)X
1476(encodings)X
1906(currently)X
2294(used)X
2511(in)X
2627(the)X
2786(Internet)X
3127(include)X
3452(pure)X
3664(hexadecimal,)X
720 2960(uuencode,)N
1166(the)X
1337(3-in-4)X
1625(base)X
1849(64)X
1998(scheme)X
2339(speci\256ed)X
2733(in)X
2860(RFC)X
3093(1113,)X
3361(the)X
3531(Andrew)X
3892(Toolkit)X
720 3072(Representation)N
1322([REF-ATK],)X
1839(and)X
2002(many)X
2240(others.)X
720 3296(These)N
979(limitations)X
1421(become)X
1750(even)X
1961(more)X
2188(apparent)X
2549(as)X
2659(gateways)X
3047(are)X
3195(designed)X
3567(to)X
3672(allow)X
3916(for)X
4058(the)X
720 3408(exchange)N
1109(of)X
1214(mail)X
1411(messages)X
1798(between)X
2143(RFC)X
2348(822)X
2516(hosts)X
2737(and)X
2900(X.400)X
3161(hosts.)X
3430(X.400)X
3691([REF-X400])X
720 3520(speci\256es)N
1084(mechanisms)X
1593(for)X
1738(the)X
1889(inclusion)X
2275(of)X
2389(non-textual)X
2862(body)X
3088(parts)X
3309(within)X
3589(electronic)X
4004(mail)X
720 3632(messages.)N
1182(The)X
1383(current)X
1707(standards)X
2121(for)X
2284(the)X
2453(mapping)X
2841(of)X
2972(X.400)X
3260(messages)X
3674(to)X
3800(RFC)X
4032(822)X
720 3744(messages)N
1119(specify)X
1433(that)X
1614(either)X
1870(X.400)X
2143(non-textual)X
2618(body)X
2847(parts)X
3071(should)X
3364(be)X
3492(converted)X
3909(to)X
4021(\(not)X
720 3856(encoded)N
1076(in\))X
1218(an)X
1344(ASCII)X
1628(format,)X
1943(or)X
2057(that)X
2236(they)X
2436(should)X
2726(be)X
2851(discarded,)X
3278(notifying)X
3665(the)X
3817(RFC)X
4032(822)X
720 3968(user)N
909(that)X
1083(discarding)X
1514(has)X
1672(occurred.)X
2087(This)X
2288(is)X
2382(clearly)X
2675(undesirable,)X
3173(as)X
3283(information)X
3768(that)X
3943(a)X
4016(user)X
720 4080(may)N
923(wish)X
1141(to)X
1253(receive)X
1568(is)X
1668(lost.)X
1891(Even)X
2125(though)X
2428(a)X
2507(user's)X
2772(UA)X
2946(may)X
3148(not)X
3307(have)X
3525(the)X
3679(capability)X
4096(of)X
720 4192(dealing)N
1032(with)X
1231(the)X
1377(non-textual)X
1844(body)X
2064(part,)X
2266(the)X
2412(user)X
2600(might)X
2853(have)X
3063(some)X
3294(mechanism)X
3761(external)X
4101(to)X
720 4304(the)N
875(UA)X
1050(that)X
1232(can)X
1403(extract)X
1703(useful)X
1975(information)X
2467(from)X
2691(the)X
2846(body)X
3075(part.)X
3310(Moreover,)X
3750(it)X
3841(does)X
4053(not)X
720 4416(allow)N
973(for)X
1124(the)X
1281(fact)X
1465(that)X
1649(the)X
1806(message)X
2171(may)X
2376(eventually)X
2817(be)X
2947(gatewayed)X
3398(back)X
3619(into)X
3808(an)X
3939(X.400)X
720 4528(MHS,)N
975(where)X
1234(the)X
1376(non-textual)X
1839(information)X
2318(would)X
2582(de\256nitely)X
2970(become)X
3294(useful)X
3553(again.)X
720 4752(This)N
936(memo)X
1222(describes)X
1625(several)X
1943(mechanisms)X
2464(that)X
2654(combine)X
3031(to)X
3151(solve)X
3400(these)X
3644(problems.)X
4096(In)X
720 4864(particular,)N
1138(it)X
1216(describes:)X
720 5088(1.)N
847(A)X
947(Content-type)X
1481(header)X
1769(\256eld,)X
1995(generalized)X
2471(from)X
2690(RFC)X
2903(1049)X
3127([RFC-1049],)X
3652(which)X
3919(can)X
4085(be)X
720 5200(used)N
940(to)X
1059(describe)X
1423(the)X
1584(type)X
1793(of)X
1916(data)X
2120(in)X
2238(the)X
2399(body)X
2634(of)X
2757(a)X
2843(message)X
3212(and)X
3394(to)X
3512(fully)X
3737(specify)X
4058(the)X
720 5312(representation)N
1290(\(encoding\))X
1731(of)X
1835(such)X
2035(data.)X
720 5536(2.)N
842(A)X
937(Content-TransferEncoding)X
1995(header)X
2278(\256eld,)X
2499(which)X
2760(can)X
2920(be)X
3037(used)X
3239(to)X
3340(describe)X
3688(an)X
3806(auxilliary)X
720 5648(encoding)N
1119(that)X
1309(was)X
1503(applied)X
1832(to)X
1952(the)X
2115(data)X
2321(in)X
2441(order)X
2689(to)X
2809(allow)X
3068(it)X
3167(to)X
3287(pass)X
3497(through)X
3841(the)X
4004(mail)X
720 5760(transport)N
1086(layer.)X
5 p
%%Page: 5 5
12 s 0 xH 0 xS 1 f
2368 400(-)N
2424(5)X
2496(-)X
720 688(3.)N
856(A)X
965("text")X
1228(content-type)X
1751(value,)X
2025(which)X
2301(can)X
2476(be)X
2608(used)X
2825(to)X
2941(represent)X
3335(text)X
3521(information)X
4017(in)X
4133(a)X
720 800(number)N
1038(of)X
1142(character)X
1520(sets)X
1688(in)X
1787(a)X
1854(standardized)X
2365(manner.)X
720 1024(4.)N
858(A)X
969("multipart")X
1443(content-type)X
1967(value,)X
2243(which)X
2521(can)X
2698(be)X
2832(used)X
3051(to)X
3169(combine)X
3544(several)X
3860(separate)X
720 1136(body-parts,)N
1179(which)X
1438(may)X
1628(be)X
1743(made)X
1976(of)X
2080(different)X
2436(types)X
2663(of)X
2767(data,)X
2976(into)X
3150(a)X
3217(single)X
3471(message.)X
720 1360(5.)N
868(A)X
989("binary")X
1365(content-type)X
1899(value,)X
2184(which)X
2472(can)X
2659(be)X
2803(used)X
3032(to)X
3160(transmit)X
3529(uninterpreted)X
4096(or)X
720 1472 0.2156(partially-interpreted)AN
1516(binary)X
1786(data,)X
1995(and)X
2158(hence)X
2407(to)X
2506(implement)X
2943(an)X
3058(email)X
3297(\256le)X
3444(transfer)X
3762(service.)X
720 1696(6.)N
863("Message")X
1324(and)X
1510("Digest")X
1886(content-type)X
2415(values)X
2708(for)X
2867(encapsulating)X
3444(one)X
3630(or)X
3758(more)X
4004(mail)X
720 1808(messages.)N
720 2032(7.)N
843(Several)X
1159(additional)X
1572(content-type)X
2081(values,)X
2378(which)X
2641(can)X
2803(be)X
2922(used)X
3126(by)X
3250(consenting)X
3695(User)X
3904(Agents)X
720 2144(to)N
819(interoperate)X
1304(with)X
1499(additional)X
1909(message)X
2259(types)X
2486(such)X
2686(as)X
2790(audio,)X
3052(images,)X
3373(and)X
3536(more.)X
720 2368(8.)N
861(Several)X
1196(optional)X
1558(header)X
1861(\256elds)X
2115(that)X
2306(can)X
2486(be)X
2623(used)X
2845(to)X
2966(further)X
3274(describe)X
3641(the)X
3805(data)X
4012(in)X
4133(a)X
720 2480(message)N
1090(body)X
1326(or)X
1449(body-part,)X
1890(in)X
2008(particular)X
2421(the)X
2582(Content-Size,)X
3152(Content-ID,)X
3657(and)X
3839(Content-)X
720 2592(Description)N
1193(header)X
1474(\256elds.)X
720 2816(Finally,)N
1041(to)X
1140(specify)X
1442(and)X
1605(promote)X
1950(a)X
2017(minimal)X
2363(level)X
2575(of)X
2679 0.1953(interoperability,)AX
3322(this)X
3485(memo)X
3750(describes)X
4133(a)X
720 2928(subset)N
995(of)X
1110(the)X
1263(above)X
1528(mechanisms)X
2039(that)X
2219(de\256nes)X
2526("compliance")X
3084(with)X
3290(this)X
3464(memo.)X
3788(That)X
4000(is,)X
4122(it)X
720 3040(speci\256es)N
1083(the)X
1233(minimal)X
1587(subset)X
1859(required)X
2212(for)X
2357(an)X
2481 0.2548(implementation)AX
3120(to)X
3228(be)X
3352(called)X
3616("RFC-XXXX-)X
720 3152(compliant.")N
6 p
%%Page: 6 6
12 s 0 xH 0 xS 1 f
2368 400(-)N
2424(6)X
2496(-)X
3 f
14 s
720 704(The)N
934(Content-Type)X
1629(Header)X
2012(Field)X
1 f
12 s
720 944(The)N
905(Content-Type)X
1475(header)X
1767(\256eld)X
1974(was)X
2159(previously)X
2601(de\256ned)X
2920(in)X
3031(RFC)X
3248(1049,)X
3500(and)X
3675(is)X
3775(reaf\256rmed)X
720 1056(and)N
900(generalized)X
1386(here.)X
1641(The)X
1832(remainder)X
2264(of)X
2384(this)X
2563(section)X
2876(is)X
2980(derived)X
3309(from)X
3536(RFC)X
3757(1049,)X
4013(and,)X
720 1168(where)N
979(different,)X
1359(is)X
1447(intended)X
1803(to)X
1902(supersede)X
2305(it.)X
720 1392(The)N
894(Content-Type)X
1477(header)X
1758(\256eld)X
1953(is)X
2041(used)X
2241(to)X
2340(specify)X
2642(the)X
2784(type)X
2975(of)X
3080(data)X
3266(in)X
3366(a)X
3434(message,)X
3809(by)X
3930(giving)X
720 1504(a)N
789(type)X
981(name,)X
1240(and)X
1405(to)X
1506(provide)X
1826(auxilliary)X
2221(information)X
2701(that)X
2871(may)X
3062(be)X
3178(required)X
3524(for)X
3661(certain)X
3949(types.)X
720 1616(In)N
839(addition.)X
1218(a)X
1300(distinguished)X
1852(syntax)X
2142(is)X
2245(de\256ned)X
2567(for)X
2718(specifying)X
3158(character)X
3551(set)X
3697(information.)X
720 1728(After)N
957(the)X
1109(type)X
1309(name)X
1552(and)X
1725(the)X
1877(optional)X
2227(character)X
2615(set,)X
2779(the)X
2930(remainder)X
3354(of)X
3467(the)X
3618(header)X
3908(\256eld)X
4112(is)X
720 1840(simply)N
1009(a)X
1079(set)X
1213(of)X
1320(parameter)X
1733(speci\256cations,)X
2308(as)X
2415(de\256ned)X
2726(for)X
2866(each)X
3071(named)X
3356(type,)X
3574(and)X
3741(an)X
3860(optional)X
720 1952(comment.)N
10 s
720 2160(\(DISCUSSION:)N
1288(It)X
1365(has)X
1500(been)X
1680(suggested)X
2024(that)X
2172(character)X
2496(sets)X
2644(can)X
2784(be)X
2888(speci\256ed)X
3201(in)X
3291(the)X
3417(same)X
3610(way)X
3772(as)X
3867(any)X
4011(other)X
720 2256(auxilliary)N
1050(information,)X
1471(and)X
1610(that)X
1753(character)X
2072(set)X
2184(speci\256cation)X
2611(is)X
2686(meaningless)X
3104(for)X
3220(content-types)X
3674(such)X
3843(as)X
3932("audio")X
720 2352(and)N
859(therefore)X
1174(should)X
1411(not)X
1537(be)X
1637(broadly)X
1906(de\256ned)X
2166(as)X
2257(part)X
2406(of)X
2497(the)X
2619(top-level)X
2928(syntax.)X
3221(However,)X
3560(character)X
3880(sets)X
4024(have)X
720 2448(been)N
895(given)X
1096(a)X
1155(distinguished)X
1604(syntax)X
1836(in)X
1921(order)X
2114(to)X
2199(aid)X
2320(gateways)X
2641(that)X
2783(need)X
2957(to)X
3041(do)X
3143(character)X
3461(set)X
3572(translation)X
3932(without)X
720 2544(necessarily)N
1101(understanding)X
1579(all)X
1683(possible)X
1969(content-types.)X
2465(Such)X
2649(translation)X
3011(should)X
3249(not,)X
3396(however,)X
3718(be)X
3819(undertaken)X
720 2640(lightly,)N
968(as)X
1055(the)X
1173(complexities)X
1602(involved)X
1902(are)X
2021(formidable)X
2393(and)X
2529(easily)X
2736(underestimated.\))X
8 s
720 2816(\(COMPATIBILITY)N
1271(NOTE:)X
1509(Readers)X
1748(familiar)X
1984(with)X
2132(RFC)X
2288(1049)X
2450(Content-types)X
2843(will)X
2977(notice)X
3167(that)X
3297(the)X
3409(syntax)X
3610(has)X
3729(been)X
3883(generalized)X
720 2896(substantiallly.)N
1122(However,)X
1399(RFC)X
1549(1049)X
1705(content-types)X
2077(are)X
2182(all)X
2273(compliant)X
2556(with)X
2697(the)X
2802(new)X
2935(syntax.)X
3161(In)X
3241(particular,)X
3528(RFC)X
3677(1049)X
3832(content-types)X
720 2976(omitted)N
934(the)X
1030 -0.2552(character-set)AX
1372(speci\256cation,)X
1729(and)X
1839(always)X
2034(had)X
2144(at)X
2208(most)X
2351(two)X
2465(of)X
2536(the)X
2632(parts)X
2774(now)X
2902(called)X
3072("parameters",)X
3437(which)X
3611(were)X
3752(distinguished)X
4112(by)X
720 3056(their)N
853(position)X
1076(as)X
1145(indication)X
1417(a)X
1461(version)X
1665(number)X
1876(and)X
1984(a)X
2028(resource)X
2259 -0.3438(reference.\))AX
12 s
720 3248(In)N
829(the)X
976(Extended)X
1369(BNF)X
1584(notation)X
1929(of)X
2038(RFC-822,)X
2448(we)X
2589(de\256ne)X
2853(a)X
2925(COntent-type)X
3479(header)X
3766(\256eld)X
3967(value)X
720 3360(as)N
824(follows:)X
7 f
10 s
720 3568(Content-Type:=)N
1440(type)X
1680(["/")X
1920(char-set])X
2400(*[";")X
2688(parameter])X
1488 3664([comment])N
720 3856(parameter)N
1200(:=)X
1584(local-part)X
720 4048(char-set)N
1152(:=)X
1296("MAILASCII"/)X
1296 4144("ISO-10646")N
1872(/)X
1296 4240("ISO-8859-")N
1872(*DIGIT)X
2208(/)X
1296 4336("ISO-2022")N
720 4528(type)N
1056(:=)X
1200("TEXT")X
1536(/)X
1200 4624("MESSAGE")N
1680(/)X
1200 4720("MULTIPART")N
1776(/)X
1200 4816("DIGEST")N
1632(/)X
1200 4912("BINARY")N
1632(/)X
1200 5008("AUDIO")N
1584(/)X
1200 5104("IMAGE")N
1584(/)X
1200 5200("PEM-MESSAGE"/)N
1200 5296("PARTIAL-MESSAGE"/)N
1200 5392("EXTERNAL-REFERENCE"/)N
1200 5488("POSTSCRIPT")N
1824(/)X
7 p
%%Page: 7 7
10 s 0 xH 0 xS 7 f
1 f
12 s
2368 384(-)N
2424(7)X
2496(-)X
7 f
10 s
1200 672("TeX")N
1488(/)X
1200 768("TROFF")N
1584(/)X
1200 864("DVI")N
1488(/)X
1200 960("ODA")N
1488(/)X
1200 1056("DVI")N
1488(/)X
1200 1152("X-BE2")N
1584(/)X
1200 1248("X-"atom)N
1 f
12 s
720 1456(These)N
985(values)X
1267(are)X
1421(not)X
1580(case)X
1782(sensitive.)X
2203(POSTSCRIPT,)X
2822(Postscript,)X
3261(and)X
3436(POStscriPT)X
3925(are)X
4079(all)X
720 1568(equivalent.)N
720 1792(This)N
918(set)X
1053(of)X
1161(type)X
1355(names)X
1629(is)X
1721(not)X
1872(intended)X
2232(to)X
2335(be)X
2454(exhaustive.)X
2942(More)X
3178(may)X
3372(be)X
3491(de\256ned)X
3802(later.)X
4026(The)X
720 1904(only)N
924(constraint)X
1337(on)X
1466(the)X
1617(de\256nition)X
2019(of)X
2131(such)X
2339(names)X
2617(is)X
2713(the)X
2863(desire)X
3125(that)X
3302(their)X
3511(uses)X
3708(not)X
3863(con\257ict.)X
720 2016(That)N
926(is,)X
1043(it)X
1126(would)X
1395(be)X
1515(undesirable)X
1988(to)X
2093(have)X
2305(two)X
2479(different)X
2841(communities)X
3369(using)X
3607("Content-type:)X
720 2128(foo")N
923(to)X
1033(mean)X
1277(two)X
1456(different)X
1823(things.)X
2141(The)X
2326(process)X
2649(of)X
2764(de\256ning)X
3114(new)X
3309(content-types,)X
3887(then,)X
4112(is)X
720 2240(not)N
877(intended)X
1243(to)X
1352(be)X
1478(a)X
1556(mechanism)X
2030(for)X
2177(imposing)X
2570(restrictions,)X
3057(but)X
3215(simply)X
3512(a)X
3590(mechanism)X
4064(for)X
720 2352(publicizing)N
1188(content-type)X
1703(usages.)X
2040(There)X
2298(are,)X
2473(therefore,)X
2878(only)X
3082(two)X
3259(acceptable)X
3700(mechanisms)X
720 2464(for)N
856(de\256ning)X
1195(new)X
1379(content-type)X
1885(values:)X
1008 2688(1.)N
1128(Private)X
1425(values)X
1695(\(starting)X
2040(with)X
2235("X-"\))X
2470(may)X
2660(be)X
2775(de\256ned)X
3082(unilaterally.)X
1008 2912(2.)N
1145("Standard")X
1606(values)X
1893(may)X
2101(be)X
2234(de\256ned)X
2559(by)X
2697(the)X
2857(publication)X
3333(of)X
3455(an)X
3588(Internet)X
1296 3024(RFC.)N
1581(The)X
1787(RFC)X
2023(need)X
2260(not)X
2438(be)X
2584(very)X
2810(long,)X
3060(but)X
3238(must)X
3480(de\256ne)X
3770(the)X
1296 3136(content-type,)N
1827(its)X
1943(associated)X
2364(parameter)X
2775(syntax,)X
3075(and)X
3239(the)X
3382(format)X
3664(of)X
3770(the)X
1296 3248(body)N
1512(of)X
1616(a)X
1683(message)X
2033(so)X
2142(marked.)X
720 3472(Several)N
1033(speci\256c)X
1351(prede\256ned)X
1781("type")X
2049(\256elds)X
2281(are)X
2423(explained)X
2822(in)X
2921(the)X
3063(appendices)X
3515(of)X
3619(this)X
3782(memo.)X
720 3696(If)N
808(no)X
928(Content-type)X
1455(header)X
1736(\256eld)X
1931(is)X
2019(present,)X
2345("text")X
2592(is)X
2680(assumed,)X
3059(with)X
3254(the)X
3397(default)X
3690(character)X
4069(set)X
720 3808(\(MAILASCII\))N
1332(as)X
1465(speci\256ed)X
1860(in)X
1987(Appendix)X
2418([APP-TEXT].)X
3059(This)X
3282(is)X
3398(consistent)X
3835(with)X
4058(the)X
720 3920(default)N
1012(message)X
1362(body)X
1578(type)X
1768(as)X
1872(de\256ned)X
2179(by)X
2299(RFC)X
2504(822.)X
720 4144(It)N
804(should)X
1085(be)X
1201(noted)X
1440(that)X
1610(the)X
1753(list)X
1897(of)X
2003(Content-type)X
2532(values)X
2804(given)X
3044(in)X
3145(the)X
3289(appendices)X
3743(is)X
3833(expected)X
720 4256(to)N
850(be)X
996(augmented)X
1474(in)X
1604(time,)X
1855(via)X
2028(the)X
2201(mechanisms)X
2732(described)X
3156(above.)X
3489(We)X
3678(have)X
3914(simply)X
720 4368(attempted,)N
1149(in)X
1248(this)X
1411(RFC,)X
1640(to)X
1739(give)X
1929(as)X
2033(many)X
2272(standard)X
2623(Content-type)X
3151(de\256nitions)X
3582(as)X
3687(was)X
3861(possible)X
720 4480(given)N
979(the)X
1142(current)X
1459(state)X
1680(of)X
1804(our)X
1976(knowledge.)X
2490(The)X
2684(Content-type)X
3231(values)X
3521(de\256ned)X
3848(here)X
4058(are)X
720 4592(compatible)N
1173(with)X
1368(the)X
1510(values)X
1780(de\256ned)X
2087(by)X
2207(RFC)X
2412(1049.)X
8 p
%%Page: 8 8
12 s 0 xH 0 xS 1 f
2368 400(-)N
2424(8)X
2496(-)X
3 f
14 s
720 704(The)N
934(Content-TransferEncoding)X
2264(Header)X
2647(Field)X
1 f
12 s
720 944(Many)N
983(content-types)X
1541(are)X
1698(represented,)X
2205(in)X
2319(their)X
2536("natural")X
2922(format,)X
3243(as)X
3363(8-bit)X
3585(or)X
3705(binary)X
3991(data.)X
720 1056(Such)N
948(data)X
1144(can)X
1313(not)X
1471(be)X
1597(transmitted)X
2066(over)X
2272(existing)X
2612(Internet)X
2947(mail)X
3154(mechanisms)X
3665(because)X
4005(both)X
720 1168(RFC)N
926(821)X
1095(and)X
1259(RFC)X
1465(822)X
1634(restrict)X
1927(mail)X
2124(messages)X
2513(to)X
2614(7)X
2688(bit)X
2816(data)X
3003(with)X
3200(reasonably)X
3643(short)X
3861(lines.)X
4117(It)X
720 1280(is)N
826(necessary,)X
1266(therefore,)X
1680(to)X
1796(de\256ne)X
2072(a)X
2156(standard)X
2523(mechanism)X
3003(for)X
3156(encoding)X
3550(such)X
3767(data)X
3969(in)X
4085(an)X
720 1392(acceptable)N
1152(manner.)X
720 1616(This)N
957(RFC)X
1204(speci\256es)X
1601(that)X
1812(such)X
2054(encodings)X
2510(will)X
2726(be)X
2883(indicated)X
3303(by)X
3465(a)X
3574(new)X
3800("Content-)X
720 1728(TransferEncoding")N
1485(header)X
1773(\256eld.)X
2022(The)X
2202(Content-TransferEncoding)X
3264(\256eld)X
3465(is)X
3559(used)X
3765(to)X
3870(indicate)X
720 1840(the)N
885(type)X
1098(of)X
1225(transformation)X
1839(that)X
2031(has)X
2206(been)X
2435(used)X
2658(to)X
2781(represent)X
3182(the)X
3348(message)X
3722(body)X
3962(in)X
4085(an)X
720 1952(acceptable)N
1152(manner.)X
720 2176(It)N
809(should)X
1095(be)X
1216(noted,)X
1484(also,)X
1693(that)X
1868(there)X
2092(is)X
2187(considerable)X
2705(interest)X
3020(and)X
3190(effort)X
3435(being)X
3680(expended)X
4080(on)X
720 2288(extending)N
1132(mail)X
1336(transport)X
1710(to)X
1816(permit)X
2099(8-bit)X
2312(or)X
2423(binary)X
2700(data.)X
2940(If)X
3035(such)X
3242(extensions)X
3679(ever)X
3876(become)X
720 2400(commonplace,)N
1309(the)X
1451(Content-TransferEncoding)X
2507(mechanism)X
2970(will)X
3144(quickly)X
3457(become)X
3782(irrelevant,)X
720 2512(and)N
890(it)X
974(is)X
1068(therefore)X
1446(desirable)X
1824(not)X
1977(to)X
2082("overload")X
2527(Content-TransferEncoding)X
3589(with)X
3790(additional)X
720 2624(mechanisms)N
1248(that)X
1445(might)X
1722(still)X
1919(be)X
2062(useful)X
2349(in)X
2477(such)X
2706(a)X
2802(future.)X
3133(For)X
3319(this)X
3511(reason,)X
3839(Content-)X
720 2736(TransferEncoding)N
1458(is)X
1565(restricted)X
1967(in)X
2085(its)X
2219(scope)X
2480(to)X
2597(refer)X
2821(to)X
2938(nothing)X
3274(but)X
3439(the)X
3599(7-bit)X
3823(encoding)X
720 2848(question.)N
1125(Matters)X
1451(such)X
1659(as)X
1771(the)X
1921(basic)X
2151(format)X
2440(in)X
2547(which)X
2814(information)X
3301(is)X
3397("encoded")X
3828(are)X
3978(to)X
4085(be)X
720 2960(handled)N
1049(by)X
1169(another)X
1482(mechanism.)X
720 3184(Unlike)N
1022(Content-types,)X
1626(which)X
1901(are)X
2059(expected)X
2442(to)X
2557(proliferate,)X
3023(it)X
3117(is)X
3222(expected)X
3606(that)X
3792(there)X
4026(will)X
720 3296(never)N
961(be)X
1079(more)X
1304(than)X
1497(a)X
1567(few)X
1738(different)X
2097(Content-TransferEncoding)X
3156(values,)X
3453(both)X
3651(because)X
3983(there)X
720 3408(is)N
808(less)X
977(need)X
1184(for)X
1321(variation)X
1689(and)X
1853(because)X
2183(the)X
2326(effect)X
2571(of)X
2676(variation)X
3044(in)X
3144(Content-TransferEncoding)X
720 3520(would)N
1049(be)X
1229(more)X
1516(problematic.)X
2114(However,)X
2579(establishing)X
3128(only)X
3388(a)X
3520(single)X
3839(Content-)X
720 3632(TransferEncoding)N
1449(mechanism)X
1922(does)X
2133(not)X
2291(seem)X
2524(possible.)X
2922(In)X
3037(particular,)X
3466(there)X
3694(is)X
3793(a)X
3871(tradeoff)X
720 3744(between)N
1069(the)X
1215(desire)X
1473(for)X
1613(a)X
1684(compact)X
2039(and)X
2205(ef\256cient)X
2548(encoding)X
2928(of)X
3035(binary)X
3308(data)X
3496(and)X
3662(the)X
3807(desire)X
4064(for)X
720 3856(a)N
789(readable)X
1142(encoding)X
1521(of)X
1627(data)X
1814(that)X
1985(is)X
2075(mostly,)X
2387(but)X
2537(not)X
2687(entirely,)X
3033(7-bit)X
3242(data.)X
3478(For)X
3638(this)X
3804(reason,)X
4106(at)X
720 3968(least)N
944(two)X
1135(encoding)X
1535(mechanisms)X
2058(are)X
2222(necessary,)X
2666(a)X
2755("readable")X
3206(encoding)X
3605(and)X
3790(a)X
3879("dense")X
720 4080(encoding.)N
720 4304(A)N
825(third)X
1043(encoding,)X
1456(for)X
2 f
1604(compressed)X
1 f
2093(\("super-dense"\))X
2730(data,)X
2951(is)X
3052(also)X
3244(strongly)X
3596(desirable.)X
4005(This)X
720 4416(RFC)N
937(does)X
1149(not)X
1307(specify)X
1620(a)X
1698("compressed")X
2265(encoding,)X
2677(due)X
2851(to)X
2961(the)X
3114(uncertain)X
3508(legal)X
3731(state)X
3943(of)X
4058(the)X
720 4528(UNIX)N
998("compress")X
1478(command)X
1897(and)X
2075(a)X
2157(lack)X
2357(of)X
2476(certainty,)X
2878(during)X
3169(the)X
3327(drafting)X
3672(of)X
3792(this)X
3971(RFC,)X
720 4640(regarding)N
1125(the)X
1279(right)X
1497(way)X
1692(to)X
1802(de\256ne)X
2072(a)X
2150(standard)X
2511(compression)X
3032(algorithm.)X
3490(It)X
3584(is)X
3683(hoped)X
3953(that)X
4133(a)X
720 4752(compressed)N
1252(Content-TransferEncoding)X
2362(will)X
2590(be)X
2759(de\256ned)X
3120(in)X
3273(a)X
3394(future)X
3703(RFC.)X
4011(Any)X
720 4864(compression)N
1231(algorithm)X
1631(for)X
1768(such)X
1969(a)X
2036(use)X
2188(should)X
2468(be)X
2583(unambiguously)X
3200(de\256ned)X
3507(and)X
3670(without)X
3988(legal)X
720 4976(encumbrances.)N
720 5200(The)N
900(Content-TransferEncoding)X
1962(\256eld)X
2163(is)X
2258(designed)X
2631(to)X
2737(specify)X
3046(a)X
3120(two-way)X
3487(mapping)X
3855(between)X
720 5312(the)N
880("native")X
1236(representation)X
1824(of)X
1946(a)X
2031(type)X
2239(of)X
2361(data)X
2564(and)X
2744(a)X
2828(representation)X
3415(that)X
3601(can)X
3776(be)X
3908(readily)X
720 5424(exchanged)N
1157(using)X
1390(7)X
1463(bit)X
1590(mail)X
1787(transport)X
2154(protocols)X
2537(as)X
2642(de\256ned)X
2950(by)X
3071(RFC)X
3277(821)X
3446(\(SMTP\).)X
3809(This)X
4005(\256eld)X
720 5536(has)N
878(not)X
1031(been)X
1243(de\256ned)X
1556(by)X
1681(any)X
1849(previous)X
2209(RFC.)X
2443(The)X
2622(\256eld's)X
2891(value)X
3129(is)X
3222(a)X
3294(single)X
3553(atom)X
3775(specifying)X
720 5648(the)N
862(type)X
1052(of)X
1156(encoding,)X
1557(as)X
1661(enumerated)X
2135(below.)X
2442(Formally:)X
9 p
%%Page: 9 9
12 s 0 xH 0 xS 1 f
7 f
1 f
2368 400(-)N
2424(9)X
2496(-)X
7 f
720 688 0.3900(Content-TransferEncoding:=)AN
2256 0.4219("BASE64"/)AX
1872 800 0.3958("QUOTED-PRINTABLE"/)AN
1872 912 0.4000("8BIT"/"BINARY"/)AN
1872 1024 0.4018("7BIT"/"X-"atom)AN
1 f
720 1248(These)N
985(values)X
1266(are)X
1419(not)X
1577(case)X
1778(sensitive.)X
2198(That)X
2410(is,)X
2534(Base64)X
2853(and)X
3028(BASE64)X
3405(and)X
3580(bAsE64)X
3925(are)X
4079(all)X
720 1360(equivalent.)N
1199(An)X
1345(encoding)X
1727(type)X
1921(of)X
2029(7BIT)X
2260(implies)X
2572(that)X
2745(the)X
2891(message)X
3245(is)X
3337(already)X
3649(in)X
3752(a)X
3823(seven-bit)X
720 1472(mail-ready)N
1163(representation.)X
1758(This)X
1954(value)X
2188(is)X
2277(assumed)X
2633(if)X
2717(the)X
2861(Content-TransferEncoding)X
3919(header)X
720 1584(\256eld)N
919(is)X
1011(not)X
1162(present.)X
1516(If)X
1608(the)X
1754(message)X
2108(is)X
2200(stored)X
2463(or)X
2571(transported)X
3032(via)X
3178(a)X
3249(mechanism)X
3715(that)X
3887(permits)X
720 1696(8-bit)N
927(data,)X
1137(a)X
1205(Content-TransferEncoding)X
2262(of)X
2367("8bit")X
2620(should)X
2901(be)X
3017(used.)X
3266(If)X
3355(the)X
3499(message)X
3851(is)X
3941(stored)X
720 1808(or)N
873(transported)X
1379(via)X
1570(a)X
1686(mechanism)X
2198(that)X
2416(permits)X
2777(arbitary)X
3149(binary)X
3467(data,)X
3724(a)X
3839(Content-)X
720 1920(TransferEncoding)N
1482(of)X
1629("binary")X
2020(should)X
2344(nonetheless)X
2861(be)X
3020(used.)X
3312(\(DISCUSSION:)X
4026(The)X
720 2032(distinction)N
1159(between)X
1512(the)X
1662(Content-TransferEncoding)X
2726(values)X
3004(of)X
3116("binary,")X
3495("8bit,")X
3778(and)X
3948("7bit")X
720 2144(may)N
930(seem)X
1172(unimportant)X
1687(in)X
1806(an)X
1941(8-bit)X
2167(binary)X
2457(environment,)X
3012(but)X
3179(clear)X
3411(labeling)X
3766(will)X
3960(be)X
4096(of)X
720 2256(enormous)N
1136(value)X
1381(to)X
1492(gateways)X
1886(between)X
2243(8-bit)X
2461(and)X
2636(7-bit)X
2854(systems.)X
3242(The)X
3428(difference)X
3855(between)X
720 2368("8bit")N
982(and)X
1155("binary")X
1513(is)X
1612(that)X
1792("8bit")X
2055(implies)X
2374(adherence)X
2800(to)X
2910(SMTP)X
3195(limits)X
3450(on)X
3581(line)X
3761(length)X
4037(and)X
720 2480(CR/LF)N
1011(semantics,)X
1439(whereas)X
1778("binary")X
2126(does)X
2326(not.\))X
720 2704(Implementors)N
1282(may)X
1475(de\256ne)X
1737(new)X
1924(content)X
2235(encoding)X
2615(values,)X
2912(but)X
3062(should)X
3346(pre\256x)X
3598(them)X
3819(with)X
4018("x-")X
720 2816(to)N
862(indicate)X
1235(their)X
1479(non-standard)X
2047(status,)X
2356(e.g.)X
2561 0.1250("Content-TransferEncoding:)AX
3749(x-my-new-)X
720 2928(encoding".)N
1242(However,)X
1724(unlike)X
2071(Content-types,)X
2742(the)X
2967(creation)X
3385(of)X
3572(new)X
3839(Content-)X
720 3040(TransferEncoding)N
1484(values)X
1799(is)X
1932(explicitly)X
2366(discouraged,)X
2924(as)X
3073(it)X
3196(seems)X
3499(likely)X
3787(to)X
3930(hinder)X
720 3152 0.2083(interoperability)AN
1339(with)X
1534(little)X
1736(potential)X
2098(bene\256t.)X
720 3376(If)N
832(a)X
923(Content-TransferEncoding)X
2003(header)X
2308(\256eld)X
2527(appears)X
2869(as)X
2997(part)X
3196(of)X
3325(a)X
3417(message)X
3792(header,)X
4122(it)X
720 3488(applies)N
1019(to)X
1120(the)X
1264(entire)X
1510(message)X
1862(body,)X
2103(whether)X
2438(or)X
2543(not)X
2691(that)X
2861(body)X
3078(is)X
3167(of)X
3272(type)X
3463("multipart.")X
3944(If)X
4033(it)X
4112(is)X
720 3600(of)N
848(type)X
1062(multipart,)X
1488(the)X
1654(encoding)X
2055(applies)X
2376(recursively)X
2852(to)X
2976(all)X
3122(of)X
3251(the)X
3418(encapsulated)X
3965(parts,)X
720 3712(including)N
1148(their)X
1389(encapsulated)X
1951(headers.)X
2357(If)X
2484(a)X
2590(Content-TransferEncoding)X
3685(header)X
4005(\256eld)X
720 3824(appears)N
1068(as)X
1202(part)X
1406(of)X
1540(an)X
1685(encapsulation's)X
2338(headers,)X
2710(it)X
2819(applies)X
3147(only)X
3373(to)X
3503(the)X
3676(body)X
3923(of)X
4058(the)X
720 3936(encapsulated)N
1260(part.)X
1500(If)X
1606(the)X
1766(encapsulated)X
2306(part)X
2498(is)X
2604(itself)X
2839(of)X
2960(type)X
3167("multipart",)X
3664(the)X
3823(encoding)X
720 4048(applies)N
1017(recursively)X
1469(to)X
1568(all)X
1689(of)X
1793(the)X
1935(encapsulated)X
2457(parts)X
2668(within)X
2938(that)X
3107(encapsulated)X
3629(part.)X
720 4272(It)N
819(should)X
1115(be)X
1246(noted)X
1500(that,)X
1709(because)X
2054(email)X
2309(is)X
2413 0.2118(character-oriented,)AX
3179(the)X
3338(mechanisms)X
3855(describe)X
720 4384(here)N
914(are)X
1060(mechanisms)X
1564(for)X
1704(encoding)X
2084(arbitrary)X
2443(byte)X
2636(streams,)X
2981(not)X
3131(bit)X
3260(streams.)X
3629(If)X
3720(a)X
3790(bit)X
3919(stream)X
720 4496(is)N
825(to)X
941(be)X
1073(encoded)X
1435(via)X
1594(one)X
1774(of)X
1895(these)X
2134(mechanisms,)X
2675(it)X
2770(should)X
3067(\256rst)X
3257(be)X
3389(converted)X
3810(to)X
3926(a)X
4010(byte)X
720 4608(stream)N
1007(using)X
1245(the)X
1393("big-endian")X
1913(bit)X
2045(order,)X
2302(in)X
2407(which)X
2672(the)X
2820(earlier)X
3097(bits)X
3266(in)X
3371(a)X
3443(stream)X
3729(become)X
4058(the)X
720 4720(higher-order)N
1243(bits)X
1424(in)X
1541(a)X
1626(byte.)X
1882(A)X
1993(bit)X
2137(stream)X
2437(not)X
2603(ending)X
2908(at)X
3021(an)X
3155(8-bit)X
3380(boundary)X
3786(should)X
4085(be)X
720 4832(padded)N
1023(with)X
1219(zeroes.)X
1538(If)X
1627(the)X
1770(precise)X
2068(bit)X
2195(count)X
2434(is)X
2522(needed,)X
2843(it)X
2921(can)X
3079(be)X
3194(given)X
3432(in)X
3531(the)X
3673(Content-Size)X
720 4944(header)N
1001(\256eld,)X
1220(described)X
1613(later)X
1809(in)X
1908(this)X
2071(document.)X
720 5168(The)N
894(following)X
1292(sections)X
1626(will)X
1800(de\256ne)X
2059(the)X
2201(two)X
2369(standard)X
2719(encoding)X
3096(mechanisms.)X
3 f
720 5392(Quoted-Printable)N
1465(Content-TransferEncoding)X
1 f
720 5616(The)N
916(Quoted-Printable)X
1625(encoding)X
2024(is)X
2134(intended)X
2512(to)X
2633(represent)X
3033(data)X
3241(that)X
3433(is)X
3544(largely,)X
3883(but)X
4053(not)X
720 5728(entirely,)N
1066(7)X
1141(bit)X
1269(ASCII.)X
1593(Printable)X
1967(ASCII)X
2243(portions)X
2584(of)X
2690(body)X
2908(parts)X
3121(encoded)X
3468(in)X
3569(this)X
3734(way)X
3920(should)X
720 5840(be)N
835(recognizable)X
1352(by)X
1472(humans,)X
1819(if)X
1902(necessary,)X
2324(without)X
2642(translation.)X
10 p
%%Page: 10 10
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(10)X
2520(-)X
720 688(In)N
843(this)X
1025(encoding,)X
1445(ASCII)X
1738(characters)X
2172(9)X
2263(\(tab\),)X
2512(10)X
2651(\(nl\),)X
2858(12)X
2998(\(np\),)X
3226(13)X
3366(\(cr\),)X
3573(32)X
3713(through)X
4056(57,)X
720 800(inclusive,)N
1130(59,)X
1288(60,)X
1446(and)X
1623(62)X
1757(through)X
2094(126,)X
2300(inclusive,)X
2709(are)X
2864(unchanged.)X
3366(All)X
3526(other)X
3761(characters,)X
720 912(including)N
1116(characters)X
1539(58)X
1667(\(:\),)X
1814(61)X
1942(\(=\),)X
2116(and)X
2287(127)X
2463(\(DEL\),)X
2770(are)X
2920(to)X
3028(be)X
3152(represented)X
3629(as)X
3742(determined)X
720 1024(by)N
840(the)X
982(following)X
1380(rules:)X
1008 1248(Rule)N
1225(#1:)X
1407(Any)X
1607(8)X
1690(bit)X
1827(value)X
2071(may)X
2272(be)X
2398(represented)X
2878(by)X
3010(a)X
3089(":")X
3230(followed)X
3608(by)X
3740(a)X
3819(two)X
3999(digit)X
1008 1360(hexadecimal)N
1540(representation)X
2130(of)X
2254(the)X
2416(character's)X
2883(8-bit)X
3109(value.)X
3410(Thus,)X
3670(for)X
3825(example,)X
1008 1472(character)N
1390(12)X
1514(\(control-L,)X
1962(or)X
2070(formfeed\))X
2483(can)X
2645(be)X
2764(represented)X
3236(by)X
3360(":0C",)X
3629(the)X
3775(equal-sign)X
1008 1584(character)N
1388(\(61\))X
1574(can)X
1734(be)X
1851(represented)X
2321(by)X
2443(":3D",)X
2714(and)X
2878(the)X
3021(colon)X
3260(character)X
3639(\(58\))X
3824(itself)X
4042(can)X
1008 1696(be)N
1123(represented)X
1591(by)X
1712(":3A".)X
2007(Rule)X
2214(#1)X
2335(is)X
2424(the)X
2567(REQUIRED)X
3077(representation)X
3648(for)X
3785(characters)X
1008 1808(127)N
1176(through)X
1499(160)X
1667(and)X
1830(for)X
1966(character)X
2344(255.)X
1008 2032(Rule)N
1214(#2:)X
1385(An)X
1526(8)X
1598(bit)X
1724(value)X
1957(from)X
2168(161)X
2336(through)X
2659(254)X
2827(may,)X
3041(alternately,)X
3497(be)X
3612(represented)X
4080(by)X
1008 2144(an)N
1129(equal-sign)X
1559(character)X
1942(followed)X
2313(by)X
2438(the)X
2585(single)X
2844(character)X
3227(obtained)X
3588(by)X
3713(the)X
3860(removal)X
1008 2256(of)N
1114(the)X
1258(high)X
1455(order)X
1685(bit,)X
1838(i.e.)X
1983(by)X
2106(subtracting)X
2561(128)X
2732(from)X
2946(the)X
3091(value.)X
3375(Thus)X
3618(the)X
3763(8)X
3838(bit)X
3967(value)X
1008 2368(193)N
1183(may)X
1380(be)X
1502(represented)X
1977(as)X
2088("=A".)X
2368(Rule)X
2581(#2)X
2708(is)X
2803(completely)X
3262(optional,)X
3632(given)X
3876(rule)X
4056(#1,)X
1008 2480(but)N
1170(is)X
1273(provided)X
1654(for)X
1805(improved)X
2213(readability)X
2665(of)X
2784(some)X
3026(8-bit)X
3248(character)X
3642(sets)X
3826(in)X
3941(which)X
1008 2592(turning)N
1328(on)X
1466(the)X
1626(8th)X
1791(bit)X
1935(produces)X
2324(a)X
2409(character)X
2805(similar)X
3115(to)X
3232(the)X
3392(corresponding)X
3984(7)X
4074(bit)X
1008 2704(character,)N
1410(e.g.)X
1573(the)X
1715(8th)X
1862(bit)X
1988(simply)X
2274(adds)X
2474(an)X
2589(umlaut.)X
1008 2928(Rule)N
1221(#3:)X
1399(The)X
1581(literal)X
1839(equal-sign)X
2272(and)X
2443(colon)X
2689(characters)X
3112(must)X
3331(themselves)X
3791(be)X
3914(quoted)X
1008 3040(by)N
1132(colons.)X
1459(Thus,)X
1703(the)X
1849(colon)X
2091(may)X
2285(be)X
2404(represented)X
2876(as)X
2984("::")X
3144(and)X
3311(the)X
3457(equal-sign)X
3886(as)X
3993(":=".)X
1008 3152(Note)N
1222(that)X
1394(this)X
1560(is)X
1651(not)X
1801(ambiguous)X
2250(with)X
2449(regard)X
2723(to)X
2826(the)X
2972(\256rst)X
3149(clause,)X
3442(because)X
3775(neither)X
4071(":")X
1008 3264(nor)N
1160("=")X
1316(are)X
1458(part)X
1632(of)X
1736(the)X
1878(hexadecimal)X
2390(alphabet.)X
1008 3488(Rule)N
1222(#4:)X
1402(A)X
1504(colon)X
1751(at)X
1854(the)X
2005(end)X
2177(of)X
2290(a)X
2366(line)X
2544(may)X
2743(be)X
2867(used)X
3076(to)X
3184(indicate)X
3523(a)X
3599(non-signi\256cant)X
1008 3600(line)N
1194(break.)X
1497(That)X
1715(is,)X
1844(if)X
1943(one)X
2122(needs)X
2381(to)X
2496(include)X
2820(a)X
2903(long)X
3114(line)X
3299(without)X
3633(line)X
3818(breaks,)X
4133(a)X
1008 3712(message)N
1371(encoded)X
1729(with)X
1937(the)X
2092(quoted-printable)X
2766(encoding)X
3156(should)X
3449(include)X
3771("soft")X
4031(line)X
1008 3824(breaks)N
1288(in)X
1392(which)X
1656(the)X
1803(line)X
1977(break)X
2220(is)X
2313(preceded)X
2690(by)X
2815(a)X
2887(colon.)X
3178(Thus)X
3398(if)X
3485(the)X
3631("raw")X
3881(form)X
4096(of)X
1008 3936(the)N
1150(line)X
1319(is)X
1407(a)X
1474(single)X
1728(line)X
1897(that)X
2066(says:)X
7 f
8 s
1008 4128(Now's)N
1236(the)X
1388(time)X
1578(for)X
1731(all)X
1884(men)X
2037(to)X
2152(come)X
2343(to)X
2458(the)X
2611(aid)X
2764(of)X
2879(their)X
3108(country.)X
3489(Now's)X
3718(the)X
3871(time)X
4062(for)X
1008 4208(all)N
1161(men)X
1314(to)X
1429(come)X
1620(to)X
1735(the)X
1888(aid)X
2041(of)X
2156(their)X
2385(country.)X
2766(Now's)X
2995(the)X
3148(time)X
3339(for)X
3492(all)X
3644(men)X
3796(to)X
3910(come)X
4100(to)X
1008 4288(the)N
1160(aid)X
1312(of)X
1426(their)X
1654(country.)X
1 f
12 s
1008 4480(This)N
1203(could)X
1441(be)X
1556(represented,)X
2048(in)X
2147(the)X
2289(quoted-printable)X
2950(encoding,)X
3351(as)X
7 f
8 s
1008 4672(Now's)N
1236(the)X
1388(time)X
1578(for)X
1730(all)X
1882(men)X
2034(to)X
2148(come)X
2338(to)X
2452(the)X
2604(aid)X
2756(of)X
2870(their)X
3098(country.)X
3478(:)X
1008 4752(Now's)N
1236(the)X
1388(time)X
1578(for)X
1730(all)X
1882(men)X
2034(to)X
2148(come)X
2338(to)X
2452(the)X
2604(aid)X
2756(of)X
2870(their)X
3098(country.)X
3478(:)X
1008 4832(Now's)N
1236(the)X
1388(time)X
1578(for)X
1730(all)X
1882(men)X
2034(to)X
2148(come)X
2338(to)X
2452(the)X
2604(aid)X
2756(of)X
2870(their)X
3098(country.)X
1 f
12 s
1008 5024(This)N
1204(provides)X
1560(a)X
1628(mechanism)X
2092(with)X
2288(which)X
2548(long)X
2744(lines)X
2951(are)X
3094(encoded)X
3440(in)X
3540(such)X
3741(a)X
3809(way)X
3995(as)X
4101(to)X
1008 5136(be)N
1133(restored)X
1477(by)X
1607(the)X
1759(user)X
1952(agent.)X
2290(The)X
2473(quoted-printable)X
3143(encoding)X
3529(REQUIRES)X
4031(that)X
1008 5248(lines)N
1221(be)X
1343(broken)X
1641(so)X
1757(that)X
1933(they)X
2131(are)X
2281(no)X
2409(more)X
2639(than)X
2837(79)X
2965(characters)X
3388(long,)X
3615(using)X
3855(soft)X
4031(line)X
1008 5360(breaks)N
1283(when)X
1515(necessary.)X
1008 5584(Rule)N
1227(#5:)X
1411(Although)X
1811(the)X
1966(SPACE)X
2301(\(32\))X
2498(and)X
2675(TAB)X
2905(\(9\))X
3055(characters)X
3484(may)X
3688(generally)X
4085(be)X
1008 5696(represented)N
1491(as)X
1610(themselves,)X
2101(they)X
2306(should)X
2601(NOT)X
2837(be)X
2967(so)X
3091(represented)X
3574(at)X
3682(the)X
3838(end)X
4015(of)X
4133(a)X
1008 5808(line,)N
1205(because)X
1538(some)X
1769(MTA's)X
2079(are)X
2225(known)X
2514(to)X
2617(remove)X
2934("white)X
3215(space")X
3496(from)X
3711(the)X
3857(end)X
4024(of)X
4133(a)X
11 p
%%Page: 11 11
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(11)X
2520(-)X
1008 688(line.)N
1235(In)X
1349(such)X
1559(cases,)X
1820(the)X
1972(characters)X
2397(MUST)X
2696(be)X
2820(represented)X
3297(as)X
3410(in)X
3518(rule)X
3701(#1)X
3830(\(as)X
3975(":20")X
1008 800(and)N
1179(":09")X
1412(respectively\))X
1942(or)X
2054(as)X
2167(themselves,)X
2652(followed)X
3027(by)X
3156(a)X
3232(soft)X
3409(line)X
3587(break)X
3834(followed)X
1008 912(by)N
1154(a)X
1247(real)X
1442(line)X
1637(break.)X
1949(IMPORTANT)X
2558(NOTE:)X
2915(In)X
3045(decoding)X
3447(a)X
3539(quoted-printable)X
1008 1024(message,)N
1384(any)X
1549(trailing)X
1854(white)X
2094(space)X
2334(on)X
2456(a)X
2525(line)X
2696(should)X
2978(be)X
3095(deleted,)X
3424(as)X
3530(it)X
3610(will)X
3786(have)X
3994(been)X
1008 1136(added)N
1262(by)X
1382 0.2841(intermediate)AX
1889(transport)X
2255(agents.)X
720 1360(It)N
806(is)X
897(also)X
1079(recommended)X
1652(that)X
1824(the)X
1969(persistence)X
2424(of)X
2531(character)X
2913(codes)X
3160(less)X
3332(than)X
3526(32)X
3650(should)X
3934(not)X
4085(be)X
720 1472(relied)N
965(on,)X
1110(particularly)X
1579(the)X
1721(TAB,)X
1961(CR,)X
2137(and)X
2300(LF)X
2436(characters.)X
2899(Even)X
3121(though)X
3412(TAB)X
3628(and)X
3791(form-feed)X
720 1584(are)N
882(permitted)X
1296(in)X
1416(this)X
1600(encoding,)X
2022(they)X
2233(can)X
2412(be)X
2548(quoted,)X
2879(and)X
3063(this)X
3247(is)X
3356(wise)X
3577(if)X
3681(their)X
3903(precise)X
720 1696(persistence)N
1172(is)X
1260(critical.)X
3 f
720 1920(NOTE)N
1019(ABOUT)X
1387(CR)X
1553(AND)X
1788(LF)X
1 f
1939(in)X
2042(quoted-printable)X
2707(encoded)X
3056(messages:)X
3498(The)X
3676(use)X
3832(of)X
3940(CR)X
4096(or)X
720 2032(LF)N
866(characters)X
1291(that)X
1470(are)X
1622(not)X
1779(part)X
1963(of)X
2077(a)X
2154(CR/LF)X
2455(sequence)X
2842(must)X
3063(be)X
3188(encoded)X
3543(as)X
3657(:0D)X
3835(and)X
4008(:0A,)X
720 2144(respectively,)N
1235(in)X
1335(messages)X
1723(that)X
1894(use)X
2048(the)X
2192(Quoted-Printable)X
2881(encoding.)X
3308(Sequences)X
3740(such)X
3942(as)X
4048(CR)X
720 2256(LF)N
858(LF)X
996(are)X
1140(also)X
1321(invalid;)X
1642(the)X
1786(only)X
1983(correct)X
2276(unencoded)X
2718(sequence)X
3096(is)X
3185(CR)X
3338(LF)X
3475(CR)X
3628(LF.)X
3813(Although)X
720 2368(RFC-822)N
1117(de\256nes)X
1429(CR)X
1597(and)X
1776(LF)X
1928(as)X
2048(ordinary)X
2414(characters)X
2845(when)X
3093(used)X
3310(outside)X
3629(of)X
3750(the)X
3909(CR/LF)X
720 2480(sequence,)N
1136(some)X
1378(implementations)X
2060(treat)X
2271(one)X
2449(\(or)X
2600(both\))X
2841(as)X
2959(equivalent)X
3399(to)X
3512(end-of-line)X
3978(or)X
4096(as)X
720 2592(error)N
942(characters)X
1368(that)X
1548(are)X
1701(discarded.)X
2153(Messages)X
2561(which)X
2831(contain)X
3150(embedded)X
3582(bare)X
3784(CR)X
3948(or)X
4064(LF)X
720 2704(characters)N
1137(should)X
1419(use)X
1572(encoding)X
1950(style)X
2157(#1)X
2278(to)X
2378(encode)X
2676(these)X
2899(characters)X
3315("safely".)X
3696(\(Discussion:)X
720 2816(Some)N
971(environments)X
1527(use)X
1688(a)X
1764(bare)X
1963(CR)X
2124(or)X
2237(bare)X
2436(LF)X
2581(as)X
2694(the)X
2845(local)X
3066(end-of-line)X
3527(convention.)X
4036(If)X
4133(a)X
720 2928(message)N
1083(contains)X
1441(embedded)X
1874(bare)X
2077(CR)X
2242(or)X
2359(LF)X
2507(characters,)X
2958(it)X
3048(is)X
3148(impossible)X
3601(to)X
3712(transform)X
4122(it)X
720 3040(from)N
941(Internet)X
1276(to)X
1386(local)X
1609(conventions)X
2109(without)X
2438(interfering)X
2880(with)X
3086(this)X
3260(local)X
3483(convention.\))X
4026(The)X
720 3152(presence)N
1082(of)X
1187(a)X
1255(CR)X
1408(LF)X
1545(sequence)X
1923(in)X
2023(a)X
2091 0.1603(quoted-printable-encoded)AX
3106(message)X
3456(is)X
3544(to)X
3643(be)X
3758(interpreted)X
720 3264(as)N
829(an)X
949(end-of-line)X
1406(marker,)X
1732(to)X
1836(be)X
1956(represented)X
2429(as)X
2538(such)X
2743(according)X
3152(to)X
3256(local)X
3474(convention)X
3932(by)X
4058(the)X
720 3376(decoding)N
1100(agent.)X
1360(If)X
1451(it)X
1532(is)X
1623(necessary)X
2024(to)X
2126(send)X
2329(a)X
2399(binary)X
2672(sequence)X
3052(of)X
3159(CR)X
3314(LF)X
3453(in)X
3555(such)X
3757(a)X
3826(message,)X
720 3488(these)N
954(characters)X
1381(should)X
1673(be)X
1800(represented)X
2280(as)X
2396(:0D:0A)X
2720(in)X
2831(order)X
3070(to)X
3182(prevent)X
3508(them)X
3738(from)X
3962(being)X
720 3600(re-converted)N
1231(into)X
1405(the)X
1547(local)X
1759(end-of-line)X
2211(convention.)X
720 3824(Since)N
958(the)X
1101(hyphen)X
1409(character)X
1788(\("-"\))X
1987(is)X
2076(represented)X
2545(as)X
2650(itself)X
2868(in)X
2968(the)X
3111(Quoted-Printable)X
3799(encoding,)X
720 3936(the)N
863(usual)X
1091(care)X
1277(must)X
1489(be)X
1605(taken,)X
1863(when)X
2095(encapsulating)X
2649(a)X
2716(quoted-printable)X
3377(encoded)X
3722(message)X
4096(or)X
720 4048(body)N
951(part)X
1140(in)X
1254(a)X
1336(multipart)X
1729(message,)X
2118(to)X
2232(ensure)X
2522(that)X
2706(the)X
2864(encapsulation)X
3434(boundary)X
3837(does)X
4053(not)X
720 4160(appear)N
1007(anywhere)X
1411(in)X
1516(the)X
1664(message.)X
2068(See)X
2237(the)X
2385(de\256nition)X
2784(of)X
2894(multipart)X
3277(messages,)X
3693(in)X
3797(Appendix)X
720 4272([APP-MULTIPART].)N
3 f
720 4496(Base64)N
1032(Content-TransferEncoding)X
1 f
720 4720(The)N
903(Base64)X
1219(Content-TransferEncoding)X
2284(is)X
2381(designed)X
2756(to)X
2864(represent)X
3250(arbitrary)X
3615(8)X
3696(bit)X
3831(data)X
4025(in)X
4133(a)X
720 4832(form)N
942(that)X
1122(is)X
1221(not)X
1379(humanly)X
1751(readable.)X
2161(The)X
2346(encoding)X
2734(and)X
2908(decoding)X
3296(algorithms)X
3743(are)X
3895(simple,)X
720 4944(but)N
885(the)X
1045(encoded)X
1408(data)X
1611(is)X
1718(only)X
1932(about)X
2189(33)X
2328(percent)X
2655(larger)X
2923(than)X
3132(the)X
3293(unencoded)X
3753(data.)X
4005(This)X
720 5056(encoding)N
1115(is)X
1221(also)X
1418(used)X
1636(in)X
1753(Privacy)X
2089(Enhanced)X
2511(Mail)X
2735(applications;)X
3269(it)X
3364(is)X
3469(described)X
3879(in)X
3995(RFC)X
720 5168(1113.)N
960(The)X
1134(ability)X
1405(in)X
1505(RFC1113)X
1903(to)X
2003(embed)X
2285(clear)X
2498(text)X
2668(within)X
2939(such)X
3140(an)X
3256(encoding)X
3634(is)X
3723(not)X
3871(allowed)X
720 5280(in)N
822(this)X
988(context,)X
1323(however.)X
1705(The)X
1882(following)X
2283(description)X
2737(of)X
2843(the)X
2987(encoding)X
3366(is)X
3456(adapted)X
3782(from)X
3995(RFC)X
720 5392(1113;)N
975(apart)X
1204(from)X
1427(the)X
1581(exclusion)X
1986(of)X
2102(the)X
2256("*")X
2418(mechanism)X
2893(for)X
3042(embedded)X
3475(clear)X
3700(text)X
3882(and)X
4058(the)X
720 5504(de\256nition)N
1146(of)X
1282(a)X
1381(portable)X
1753(newline)X
2114(syntax,)X
2445(using)X
2709(the)X
2883(comma)X
3223(character,)X
3657(there)X
3906(are)X
4080(no)X
720 5616(signi\256cant)N
1145(technical)X
1518(changes)X
1852(from)X
2063(RFC)X
2268(1113.)X
12 p
%%Page: 12 12
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(12)X
2520(-)X
720 688(A)N
838(64-character)X
1369(subset)X
1658(of)X
1787(International)X
2329(Alphabet)X
2731(IA5)X
2929(is)X
3042(used,)X
3291(enabling)X
3673(6)X
3771(bits)X
3960(to)X
4085(be)X
720 800(represented)N
1204(per)X
1366(printable)X
1748(character.)X
2189(\(The)X
2410(proposed)X
2801(subset)X
3080(of)X
3199(characters)X
3629(is)X
3732(represented)X
720 912(identically)N
1162(in)X
1271(IA5)X
1454(and)X
1627(ASCII.\))X
1967(One)X
2161(additional)X
2582(character,)X
2995("=",)X
3186(is)X
3285(used)X
3496(to)X
3606(signify)X
3908(special)X
720 1024(processing)N
1189(functions.)X
1653(The)X
1861(character)X
2273("=")X
2463(is)X
2585(used)X
2819(for)X
2988(padding)X
3355(within)X
3658(the)X
3833(printable)X
720 1136(encoding)N
1110(procedure.)X
1556(The)X
1743(encoding)X
2133(function's)X
2560(output)X
2843(is)X
2944(delimited)X
3346(into)X
3533(text)X
3716(lines)X
3936(\(using)X
720 1248(local)N
965(conventions\),)X
1543(with)X
1771(each)X
2005(line)X
2207(except)X
2516(the)X
2691(last)X
2882(containing)X
3346(exactly)X
3681(64)X
3833(printable)X
720 1360(characters)N
1135(and)X
1298(the)X
1440(\256nal)X
1635(line)X
1804(containing)X
2235(64)X
2356(or)X
2461(fewer)X
2705(printable)X
3073(characters.)X
3537(\(This)X
3765(line)X
3935(length)X
720 1472(is)N
820(easily)X
1081(printable)X
1460(and)X
1635(is)X
1735(guaranteed)X
2194(to)X
2305(satisfy)X
2592(SMTP's)X
2946(1000)X
3173(character)X
3562(transmitted)X
4031(line)X
720 1584(length)N
992(limit.\))X
1286(Although)X
1680(implementations)X
2354(are)X
2503(encouraged)X
2978(to)X
3084(be)X
3206(liberal)X
3485(in)X
3592(accepting)X
3994(lines)X
720 1696(of)N
830(different)X
1192(lengths)X
1500(if)X
1589(they)X
1785(are)X
1933(received,)X
2314(they)X
2510(should)X
2796(only)X
2996(compose)X
3367(lines)X
3578(of)X
3687(the)X
3834(speci\256ed)X
720 1808(lengths.)N
720 2032(The)N
894(encoding)X
1271(process)X
1583(represents)X
1997(24-bit)X
2251(groups)X
2536(of)X
2640(input)X
2862(bits)X
3025(as)X
3129(output)X
3399(strings)X
3679(of)X
3783(4)X
3855(encoded)X
720 2144(characters.)N
1186(Proceeding)X
1670(from)X
1908(left)X
2088(to)X
2214(right)X
2447(across)X
2738(a)X
2832(24-bit)X
3113(input)X
3362(group)X
3637(is)X
3752(formed)X
4080(by)X
720 2256(concatenating)N
1292(3)X
1376(8-bit)X
1594(input)X
1828(groups,)X
2149(this)X
2325(is)X
2426(then)X
2629(treated)X
2929(as)X
3046(4)X
3131(concatenated)X
3672(6-bit)X
3891(groups.)X
720 2368(When)N
979(encoding)X
1360(a)X
1431(bit)X
1561(stream)X
1846(via)X
1992(the)X
2138(base64)X
2433(encoding,)X
2838(the)X
2984(bit)X
3114(stream)X
3399(should)X
3683(be)X
3802(presumed)X
720 2480(to)N
821(be)X
939(ordered)X
1260(with)X
1458(the)X
1603(most-signi\256cant-bit)X
2384(\256rst.)X
2608(That)X
2812(is,)X
2927(the)X
3072(\256rst)X
3248(bit)X
3377(in)X
3479(the)X
3624(stream)X
3908(will)X
4085(be)X
720 2592(the)N
866(high-order)X
1300(bit)X
1430(in)X
1533(the)X
1679(\256rst)X
1856(byte,)X
2074(and)X
2241(the)X
2387(eighth)X
2655(bit)X
2784(with)X
2982(be)X
3100(the)X
3245(low-order)X
3651(bit)X
3780(in)X
3882(the)X
4027(\256rst)X
720 2704(byte,)N
934(and)X
1097(so)X
1206(on.)X
720 2928(Each)N
960(6-bit)X
1189(group)X
1460(is)X
1571(used)X
1794(as)X
1921(an)X
2059(index)X
2320(into)X
2517(an)X
2655(array)X
2900(of)X
3028(64)X
3172(printable)X
3563(characters.)X
4026(The)X
720 3040(character)N
1126(referenced)X
1585(by)X
1733(the)X
1903(index)X
2169(is)X
2285(placed)X
2589(in)X
2716(the)X
2886(output)X
3184(string.)X
3479(These)X
3761(characters,)X
720 3152(identi\256ed)N
1110(in)X
1211(Table)X
1457(1)X
1531(below,)X
1816(are)X
1961(selected)X
2299(so)X
2411(as)X
2518(to)X
2620(be)X
2738(universally)X
3193(representable,)X
3758(and)X
3924(the)X
4069(set)X
720 3264(excludes)N
1081(characters)X
1496(with)X
1691(particular)X
2085(signi\256cance)X
2569(to)X
2668(SMTP)X
2942(\(e.g.,)X
3161(".",)X
3311("<CR>",)X
3673("<LF>"\).)X
3 f
14 s
2269 3504(Table)N
2570(1)X
1 f
12 s
7 f
10 s
816 3744(Value)N
1104(Encoding)X
1584(Value)X
1872(Encoding)X
2352(Value)X
2640(Encoding)X
3120(Value)X
3408(Encoding)X
1056 3840(0)N
1152(A)X
1776(17)X
1920(R)X
2544(34)X
2688(i)X
3312(51)X
3456(z)X
1056 3936(1)N
1152(B)X
1776(18)X
1920(S)X
2544(35)X
2688(j)X
3312(52)X
3456(0)X
1056 4032(2)N
1152(C)X
1776(19)X
1920(T)X
2544(36)X
2688(k)X
3312(53)X
3456(1)X
1056 4128(3)N
1152(D)X
1776(20)X
1920(U)X
2544(37)X
2688(l)X
3312(54)X
3456(2)X
1056 4224(4)N
1152(E)X
1776(21)X
1920(V)X
2544(38)X
2688(m)X
3312(55)X
3456(3)X
1056 4320(5)N
1152(F)X
1776(22)X
1920(W)X
2544(39)X
2688(n)X
3312(56)X
3456(4)X
1056 4416(6)N
1152(G)X
1776(23)X
1920(X)X
2544(40)X
2688(o)X
3312(57)X
3456(5)X
1056 4512(7)N
1152(H)X
1776(24)X
1920(Y)X
2544(41)X
2688(p)X
3312(58)X
3456(6)X
1056 4608(8)N
1152(I)X
1776(25)X
1920(Z)X
2544(42)X
2688(q)X
3312(59)X
3456(7)X
1056 4704(9)N
1152(J)X
1776(26)X
1920(a)X
2544(43)X
2688(r)X
3312(60)X
3456(8)X
1008 4800(10)N
1152(K)X
1776(27)X
1920(b)X
2544(44)X
2688(s)X
3312(61)X
3456(9)X
1008 4896(11)N
1152(L)X
1776(28)X
1920(c)X
2544(45)X
2688(t)X
3312(62)X
3456(+)X
1008 4992(12)N
1152(M)X
1776(29)X
1920(d)X
2544(46)X
2688(u)X
3312(63)X
3456(/)X
1008 5088(13)N
1152(N)X
1776(30)X
1920(e)X
2544(47)X
2688(v)X
1008 5184(14)N
1152(O)X
1776(31)X
1920(f)X
2544(48)X
2688(w)X
3168(\(pad\))X
3456(=)X
1008 5280(15)N
1152(P)X
1776(32)X
1920(g)X
2544(49)X
2688(x)X
1008 5376(16)N
1152(Q)X
1776(33)X
1920(h)X
2544(50)X
2688(y)X
1 f
12 s
720 5584(Special)N
1050(processing)X
1507(is)X
1617(performed)X
2064(if)X
2169(fewer)X
2435(than)X
2648(24)X
2791(bits)X
2977(are)X
3142(available)X
3538(at)X
3655(the)X
3820(end)X
4006(of)X
4133(a)X
720 5696(message)N
1103(or)X
1240(encapsulated)X
1795(part)X
2002(of)X
2139(a)X
2239(message.)X
2670(A)X
2796(full)X
2987(encoding)X
3396(quantum)X
3789(is)X
3909(always)X
720 5808(completed)N
1157(at)X
1262(the)X
1415(end)X
1590(of)X
1706(a)X
1785(message.)X
2171(When)X
2437(fewer)X
2692(than)X
2894(24)X
3026(input)X
3260(bits)X
3435(are)X
3589(available)X
3974(in)X
4085(an)X
13 p
%%Page: 13 13
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(13)X
2520(-)X
720 688(input)N
944(group,)X
1218(zero)X
1410(bits)X
1575(are)X
1719(added)X
1975(\(on)X
2129(the)X
2273(right\))X
2512(to)X
2612(form)X
2824(an)X
2940(integral)X
3260(number)X
3579(of)X
3684(6-bit)X
3891(groups.)X
720 800(Output)N
1013(character)X
1393(positions)X
1766(which)X
2027(are)X
2171(not)X
2321(required)X
2669(to)X
2771(represent)X
3151(actual)X
3409(input)X
3634(data)X
3822(are)X
3967(set)X
4101(to)X
720 912(the)N
870(character)X
1256("=".)X
1468(Since)X
1714(all)X
1843(canonically)X
2319(encoded)X
2671(output)X
2948(is)X
3043(an)X
3165(integral)X
3491(number)X
3816(of)X
3927(octets,)X
720 1024(only)N
919(the)X
1065(following)X
1467(cases)X
1698(can)X
1860(arise:)X
2097(\(1\))X
2237(the)X
2384(\256nal)X
2584(quantum)X
2950(of)X
3059(encoding)X
3441(input)X
3668(is)X
3761(an)X
3881(integral)X
720 1136(multiple)N
1068(of)X
1174(24)X
1296(bits;)X
1488(here,)X
1704(the)X
1848(\256nal)X
2045(unit)X
2221(of)X
2327(encoded)X
2674(output)X
2946(will)X
3122(be)X
3239(an)X
3356(integral)X
3676(multiple)X
4023(of)X
4128(4)X
720 1248(characters)N
1138(with)X
1336(no)X
1459("=")X
1618(padding,)X
1979(\(2\))X
2118(the)X
2263(\256nal)X
2461(quantum)X
2825(of)X
2932(encoding)X
3312(input)X
3537(is)X
3628(exactly)X
3934(8)X
4010(bits;)X
720 1360(here,)N
936(the)X
1080(\256nal)X
1277(unit)X
1453(of)X
1559(encoded)X
1905(output)X
2176(will)X
2351(be)X
2467(two)X
2636(characters)X
3052(followed)X
3419(by)X
3540(two)X
3709("=")X
3866(padding)X
720 1472(characters,)N
1168(or)X
1281(\(3\))X
1427(the)X
1579(\256nal)X
1784(quantum)X
2155(of)X
2269(encoding)X
2656(input)X
2888(is)X
2986(exactly)X
3299(16)X
3429(bits;)X
3629(here,)X
3853(the)X
4005(\256nal)X
720 1584(unit)N
894(of)X
998(encoded)X
1343(output)X
1613(will)X
1787(be)X
1902(three)X
2119(characters)X
2534(followed)X
2900(by)X
3020(one)X
3183("=")X
3339(padding)X
3673(character.)X
720 1808(One)N
925(addition)X
1287(is)X
1397(made)X
1652(to)X
1773(the)X
1937(RFC)X
2164(1113)X
2402(speci\256cation)X
2935(of)X
3061(this)X
3246(encoding:)X
3696(The)X
3892(comma)X
720 1920(character)N
1110(\(",",)X
1303(ASCII)X
1588(44\))X
1751(may)X
1952(be)X
2078(used)X
2289(to)X
2399(represent)X
2787(an)X
2913("end-of-line")X
3454(or)X
3569("end-of-record")X
720 2032(marker.)N
1049(If)X
1145(line-oriented)X
1670(data)X
1863(are)X
2013(encoded)X
2366(using)X
2606(base64,)X
2929(it)X
3015(is)X
3111(desirable)X
3491(to)X
3598(restore)X
3893(end-of-)X
720 2144(line)N
902(markers)X
1249(according)X
1666(to)X
1778(the)X
1932(local)X
2156(convention.)X
2668(The)X
2854(RFC)X
3071(1113)X
3299(speci\256cation,)X
3846(as)X
3962(given)X
720 2256(above,)N
1008(offers)X
1266(no)X
1396(way)X
1590(to)X
1699(differentiate)X
2205(between)X
2560(a)X
2637(binary)X
2917(\256le)X
3074(including)X
3472(a)X
3549(CRLF)X
3823(sequence)X
720 2368(and)N
888(a)X
960(portable)X
1305(end-of-line)X
1762(marker.)X
2112(This)X
2311(memo)X
2580(augments)X
2977(that)X
3150(mechanism)X
3617(to)X
3720(permit)X
4000(such)X
720 2480(differentiation,)N
1320(as)X
1424(follows.)X
1784(To)X
1915(represent)X
2292(an)X
2407(end-of-line)X
2859(marker:)X
1008 2704(1.)N
1135(Treat)X
1370(the)X
1519(byte)X
1716(stream)X
2004(preceding)X
2416(the)X
2566(end-of-line)X
3026(as)X
3138(terminating)X
3615(with)X
3818(at)X
1008 2816(the)N
1166(end)X
1345(of)X
1465(the)X
1623(line)X
1808(--)X
1912(that)X
2097(is,)X
2225(pad)X
2404(with)X
2615("=")X
2786(characters)X
3216(as)X
3335(appropriate)X
3813(to)X
1008 2928(complete)N
1386(the)X
1528(representation)X
2098(of)X
2202(the)X
2344(line.)X
1008 3152(2.)N
1128(Insert)X
1371(a)X
1438(comma)X
1746(character.)X
1008 3376(3.)N
1139(Resume)X
1484(the)X
1637(encoding)X
2025(starting)X
2349(a)X
2427(new)X
2622(24-bit)X
2887(input)X
3120(group)X
3379(with)X
3585(the)X
3739(\256rst)X
1008 3488(character)N
1386(on)X
1506(the)X
1648(next)X
1838(line.)X
720 3712(Thus,)N
1063(while)X
1404(encoding)X
1884(the)X
2129(binary)X
2503(sequence)X
2984("a-b-c-CR-LF-a-b-c")X
3946(yields)X
720 3824("YWJjDQphYmM=",)N
1598(encoding)X
1986("a-b-c")X
2297(followed)X
2674(by)X
2805(an)X
2931(end-of-line)X
3394(followed)X
3770(by)X
3900("a-b-c")X
720 3936(yields)N
976("YWJj,YWJj")X
1552(They)X
1776(will)X
1952(be)X
2069(translated)X
2470(back)X
2678(into)X
2854(the)X
2998(same)X
3222(thing)X
3447(if)X
3533(the)X
3678(local)X
3893(end-of-)X
720 4048(line)N
901(convention)X
1364(is)X
1463(CRLF,)X
1762(but)X
1920(they)X
2121(will)X
2306(be)X
2432(translated)X
2842(back)X
3059(differently)X
3501(if)X
3595(the)X
3748(end-of-line)X
720 4160(convention)N
1172(is)X
1260(anything)X
1621(other)X
1843(than)X
2033(CRLF.)X
720 4384(Since)N
972(the)X
1128(hyphen)X
1449(character)X
1841(\("-"\))X
2053(is)X
2155(not)X
2317(used,)X
2556(there)X
2788(is)X
2891(no)X
3026(need)X
3247(to)X
3361(worry)X
3629(about)X
3882(quoting)X
720 4496(apparent)N
1076(encapsulation)X
1630(boundaries)X
2076(within)X
2346(base64-encoded)X
2990(body)X
3206(parts.)X
14 p
%%Page: 14 14
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(14)X
2520(-)X
3 f
14 s
720 704(Additional)N
1258(Optional)X
1709(Content-)X
2162(Header)X
2545(Fields)X
12 s
720 944(Optional)N
1107(Content-ID)X
1599(Header)X
1928(Field)X
1 f
720 1168(In)N
831(constructing)X
1338(a)X
1412(high-level)X
1834(user)X
2025(agent,)X
2289(it)X
2374(may)X
2571(be)X
2693(desirable)X
3072(to)X
3178(allow)X
3423(one)X
3594(message)X
3952(body-)X
720 1280(part)N
895(to)X
995(make)X
1229(reference)X
1613(to)X
1713(another.)X
2075(This)X
2270(may)X
2460(be)X
2575(done)X
2786(using)X
3018(the)X
3160("Content-ID")X
3700(header)X
3981(\256eld,)X
720 1392(which)N
979(is)X
1067(syntactically)X
1579(identical)X
1936(to)X
2035(the)X
2177("Message-ID")X
2748(header)X
3029(\256eld:)X
7 f
720 1616 0.4167(Content-ID)AN
1358(:=)X
1532("<")X
1764(msg-id)X
2170(">")X
3 f
720 1840(Optional)N
1107(Content-Description)X
1968(Header)X
2297(Field)X
1 f
720 2064(It)N
804(may)X
995(be)X
1111(desirable)X
1484(to)X
1584(associate)X
1957(some)X
2185(descriptive)X
2633(information)X
3113(with)X
3310(a)X
3379(given)X
3619(body-part.)X
4043(For)X
720 2176(example,)N
1115(it)X
1213(may)X
1423(be)X
1558(useful)X
1836(to)X
1954(mark)X
2195(an)X
2329("image")X
2686(body-part)X
3103(as)X
3226("a)X
3351(picture)X
3662(of)X
3785(the)X
3946(Space)X
720 2288(Shuttle)N
1018(Endeavor.")X
1499(Such)X
1716(text)X
1886(may)X
2077(be)X
2193(placed)X
2470(in)X
2570(the)X
2713(Content-Description)X
3524(header)X
3806(\256eld.)X
4026(The)X
720 2400(text)N
905(will)X
1095(be)X
1226(assumed)X
1597(to)X
1712(be)X
1843(in)X
1958(the)X
2116(same)X
2354(character)X
2748(set)X
2895(as)X
3015(the)X
3172(multipart)X
3565(message)X
3930(within)X
720 2512(which)N
979(it)X
1057(is)X
1145(a)X
1212(part.)X
7 f
720 2736 0.3958(Content-Description)AN
1880(:=)X
2054(*text)X
3 f
720 2960(Optional)N
1107(Content-Size)X
1659(Header)X
1988(Field)X
1 f
720 3184(In)N
853(the)X
1024(discussions)X
1514(of)X
1647(earlier)X
1947(drafts)X
2219(of)X
2352(this)X
2544(memo,)X
2863(some)X
3120(people)X
3431(indicated)X
3839(a)X
3936(strong)X
720 3296(preference)N
1194(for)X
1373(using)X
1648(a)X
1758(size-counting)X
2344(scheme)X
2700(to)X
2842(delimit)X
3183(the)X
3367(boundaries)X
3855(between)X
720 3408(encapsulated)N
1252(parts)X
1473(of)X
1587(multipart)X
1975(messages.)X
2420(This)X
2625(was)X
2808(rejected)X
3148(because)X
3487(such)X
3697(schemes)X
4058(are)X
720 3520(not,)N
904(in)X
1015(general,)X
1359(suf\256ciently)X
1828(robust)X
2104(across)X
2380(the)X
2534(SMTP)X
2820(transport)X
3198(layer.)X
3475(For)X
3644(example,)X
4031(line)X
720 3632(counts)N
1007(can)X
1178(be)X
1306(altered)X
1606(by)X
1739(line-wrapping)X
2316(MTA's,)X
2659(and)X
2835(byte)X
3038(counts)X
3326(can)X
3497(be)X
3625(altered)X
3925(in)X
4037(any)X
720 3744(number)N
1050(of)X
1166(ways,)X
1423(and)X
1598(may)X
1800(be)X
1927(confused)X
2309(by)X
2440(crossing)X
2795(boundaries)X
3252(in)X
3362(which)X
3632(the)X
3785(size)X
3970(of)X
4085(an)X
720 3856(end-of-line)N
1177(marker)X
1479(changes.)X
1866(However,)X
2272(there)X
2495(are)X
2643(restricted)X
3032(environments)X
3586(in)X
3691(which)X
3956(either)X
720 3968(or)N
828(both)X
1027(of)X
1135(these)X
1361(counts)X
1640(can)X
1802(be)X
1921(relied)X
2169(upon,)X
2413(and)X
2580(in)X
2682(such)X
2885(environments)X
3436(it)X
3517(may)X
3710(be)X
3828(desirable)X
720 4080(to)N
837(implement)X
1292(a)X
1377(count-based)X
1884(approach)X
2279(to)X
2396(delimiters.)X
2872(Therefore)X
3294(this)X
3475(memo)X
3759(speci\256es)X
4133(a)X
720 4192(conventional)N
1247(way)X
1436(to)X
1539(do)X
1663(this,)X
1854(in)X
1957(order)X
2188(to)X
2291(promote)X
2640 0.2083(interoperability)AX
3263(among)X
3553(systems)X
3885(that)X
4058(are)X
720 4304(able)N
905(to)X
1004(take)X
1189(this)X
1352(approach.)X
720 4528(In)N
838(such)X
1052(cases,)X
1317(boundary)X
1718(delimiters,)X
2166(as)X
2284(de\256ned)X
2605(above,)X
2897(are)X
3053(still)X
3236(required.)X
3643(However,)X
4058(the)X
720 4640(header)N
1008(area)X
1200(of)X
1311(an)X
1433(encapsulated)X
1962(part)X
2143(may)X
2340(include)X
2654(an)X
2775(optional)X
3121(Content-Size)X
3654(header)X
3941(which)X
720 4752(indicates)N
1091(where)X
1354(the)X
1500(encapsulated)X
2026(part)X
2204(ends,)X
2432(if)X
2519(its)X
2638(size)X
2816(has)X
2973(not)X
3125(been)X
3336(altered.)X
3652(The)X
3831(size)X
4010(may)X
720 4864(be)N
837(measured)X
1232(in)X
1333(either)X
1579(bytes)X
1808(or)X
1913(lines.)X
2168(Those)X
2428(who)X
2618(use)X
2771(the)X
2914(Content-Size)X
3442(header)X
3724(\256eld)X
3920(should)X
720 4976(still)N
902(preserve)X
1265(the)X
1420(encapsulation)X
1987(boundaries,)X
2471(and)X
2648(should)X
2942(recognize)X
3355(that)X
3538(other)X
3774(agents)X
4058(are)X
720 5088(free)N
894(to)X
993(ignore)X
1263(it)X
1341(in)X
1440(favor)X
1667(of)X
1771(complete)X
2149(reliance)X
2479(on)X
2599(encapsulation)X
3153(boundaries.)X
720 5312(The)N
894(Content-Size)X
1421(header)X
1702(\256eld)X
1897(is)X
1985(de\256ned)X
2292(as)X
2396(follows:)X
7 f
720 5536 0.4091(Content-Size)AN
1474(=)X
1590(1*DIGIT)X
2054("lines")X
15 p
%%Page: 15 15
12 s 0 xH 0 xS 7 f
1 f
2344 400(-)N
2400(15)X
2520(-)X
7 f
1104 688(/)N
1220(1*DIGIT)X
1684("bytes")X
1104 800(/)N
1220(1*DIGIT)X
1684("bits")X
1 f
720 1024(Note)N
948(that)X
1134(each)X
1352(encapsulated)X
1891(part)X
2082(should)X
2379(still)X
2566(end)X
2747(with)X
2960(an)X
3093(end-of-line)X
3563(followed)X
3947(by)X
4085(an)X
720 1136(encapsulation)N
1287(boundary.)X
1735(However,)X
2148(a)X
2228(message)X
2591(store)X
2815(that)X
2997(wishes,)X
3319(for)X
3468(example,)X
3856(to)X
3968(use)X
4133(a)X
720 1248(storage)N
1029(format)X
1318(that)X
1495(is)X
1591(largely)X
1891(RFC)X
2104(822-compliant,)X
2722(but)X
2877(includes)X
3230(binary)X
3508(storage)X
3818(of)X
3930(binary)X
720 1360(objects,)N
1045(can)X
1207(use)X
1363(the)X
1509(Content-Size)X
2039(header)X
2323(\256eld)X
2521(to)X
2623(indicate)X
2956(whether)X
3293(or)X
3400(not)X
3550(the)X
3695(\256nal)X
3893(end-of-)X
720 1472(line)N
889(is)X
977(to)X
1076(be)X
1191(interpreted)X
1633(as)X
1738(part)X
1913(of)X
2018(the)X
2161(binary)X
2432(object.)X
2741(If)X
2830(the)X
2973(end-of-line)X
3426(follows)X
3739(the)X
3882(number)X
720 1584(of)N
824(bytes)X
1051(speci\256ed)X
1417(for)X
1553(the)X
1695(encapsulation,)X
2273(then)X
2463(it)X
2541(is)X
2629(not)X
2776(part)X
2950(of)X
3054(the)X
3196(encapsulation.)X
720 1808(The)N
904(size)X
1088(given)X
1336(by)X
1466(the)X
1618(Content-Size)X
2155(header)X
2446(\256eld)X
2651(is)X
2749(the)X
2901(size)X
3085(of)X
3199(the)X
3351(encapsulation's)X
3984(body)X
720 1920(only,)N
940(not)X
1088(counting)X
1450(the)X
1593(blank)X
1832(line)X
2002(that)X
2172(separates)X
2550(the)X
2693(header)X
2975(from)X
3186(the)X
3328(body.)X
3592(In)X
3696(other)X
3918(words,)X
720 2032(the)N
867(four)X
1056(bytes)X
1288(CRLF)X
1557(CRLF,)X
1850(which)X
2114(separate)X
2459(header)X
2745(from)X
2961(body,)X
3206(are)X
3354(NOT)X
3581(counted)X
3916(as)X
4026(part)X
720 2144(of)N
824(the)X
966(content-size.)X
16 p
%%Page: 16 16
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(16)X
2520(-)X
3 f
14 s
720 704(RFC-XXXX)N
1340(Compliance)X
1 f
12 s
720 944(The)N
906(mechanisms)X
1418(described)X
1823(in)X
1934(this)X
2109(memo)X
2386(are)X
2541(open-ended.)X
3075(It)X
3171(is)X
3272(de\256nitely)X
3673(not)X
3833(expected)X
720 1056(that)N
896(all)X
1024(implementations)X
1697(will)X
1877(implement)X
2320(all)X
2447(of)X
2557(the)X
2705(content-types)X
3254(described,)X
3677(nor)X
3835(that)X
4010(they)X
720 1168(will)N
905(all)X
1037(share)X
1275(the)X
1429(same)X
1663(extensions.)X
2153(In)X
2269(order)X
2508(to)X
2619(promote)X
2976 0.1953(interoperability,)AX
3631(however,)X
4022(it)X
4112(is)X
720 1280(useful)N
994(to)X
1108(de\256ne)X
1382(the)X
1539(concept)X
1878(of)X
1997("RFC-XXXX-Compliance")X
3101(to)X
3215(de\256ne)X
3488(a)X
3569(certain)X
3870(level)X
4096(of)X
720 1392 0.2548(implementation)AN
1354(that)X
1527(allows)X
1806(the)X
1952(useful)X
2215(interworking)X
2740(of)X
2848(messages)X
3239(with)X
3438(content)X
3751(that)X
3925(differs)X
720 1504(from)N
931(US)X
1077(ASCII)X
1351(text.)X
1568(In)X
1672(this)X
1835(section,)X
2156(we)X
2292(specify)X
2594(the)X
2736(requirements)X
3263(for)X
3399(such)X
3599(compliance.)X
720 1728(An)N
861(RFC-XXXX-Compliant)X
1813(mail)X
2009(user)X
2193(agent)X
2426(must:)X
1008 1952(1.)N
1137(Recognize)X
1577(the)X
1728(Content-TransferEncoding)X
2794(header)X
3085(\256eld,)X
3314(and)X
3487(un-encode)X
1008 2064(data)N
1199(encoded)X
1550(with)X
1751(either)X
2001(the)X
2149(quoted-printable)X
2816(or)X
2925(base64)X
3221(implementations.)X
1008 2176(\(If)N
1131(a)X
1201(compressed)X
1682(encoding)X
2062(is)X
2153(ever)X
2346(agreed)X
2630(to,)X
2756(it)X
2837(should)X
3120(also)X
3302(become)X
3630(part)X
3808(of)X
1008 2288(all)N
1129(compliant)X
1539(user)X
1723(agents.\))X
1008 2512(2.)N
1157(Recognize)X
1618(and)X
1811(interpret)X
2192(the)X
2364(Content-type)X
2921(header)X
3232(\256eld,)X
3481(and)X
3674(avoid)X
1008 2624(showing)N
1363(an)X
1484(unsuspecting)X
2016(user)X
2206(raw)X
2380(data)X
2571(that)X
2746(has)X
2904(a)X
2977(content-type)X
3489(\256eld)X
3690(other)X
1008 2736(than)N
1198(text.)X
1008 2960(3.)N
1138(Explicitly)X
1553(handle)X
1844(the)X
1996(following)X
2405(content-type)X
2922(values,)X
3227(as)X
3342(de\256ned)X
3660(in)X
3770(the)X
1008 3072(appendices:)N
1296 3296(--)N
1384(text,)X
1577(with)X
1772(at)X
1866(least)X
2067(the)X
2209(MAILASCII)X
2728(character)X
3106(set.)X
1296 3520(--)N
1384(message,)X
1758(with)X
1953(at)X
2047(least)X
2248(the)X
2390(MAILASCII)X
2909(character)X
3287(set.)X
1320 3744(--)N
1408(multipart,)X
1810(although)X
2171(parallel)X
2485(parts)X
2696(may)X
2886(be)X
3001(serialized.)X
1296 3968(--)N
1384(digest,)X
1662(with)X
1857(at)X
1951(least)X
2152(the)X
2294(MAILASCII)X
2813(character)X
3191(set.)X
1296 4192(--)N
1412(binary,)X
1734(although)X
2123(no)X
2271(particular)X
2693(subtype)X
3044(recognition)X
3536(is)X
1296 4304(required.)N
1008 4528(4.)N
1140(Upon)X
1389(encountering)X
1928(an)X
2055(unrecognized)X
2611(content-type,)X
3154(an)X
3282 0.2548(implementation)AX
1008 4640(should)N
1302(treat)X
1512(it)X
1604(as)X
1721(if)X
1817(it)X
1908(had)X
2084(a)X
2164(content-type)X
2683(of)X
2800("binary")X
3161(with)X
3369(no)X
3502(parameter)X
1008 4752(sub-arguments.)N
720 4976(A)N
820(user)X
1011(agent)X
1251(that)X
1427(meets)X
1683(the)X
1832(above)X
2093(conditions)X
2526(is)X
2622(said)X
2809(to)X
2916(be)X
3039(RFC-XXXX)X
3560(compliant.)X
4026(The)X
720 5088(meaning)N
1089(of)X
1206(this)X
1382(phrase)X
1670(is)X
1771(that)X
1953(it)X
2044(is)X
2145(assumed)X
2513(to)X
2625(be)X
2753("safe")X
3023(to)X
3135(send)X
3348(virtually)X
3712(any)X
3888(kind)X
4096(of)X
720 5200(properly-marked)N
1395(data)X
1584(to)X
1687(users)X
1912(of)X
2020(such)X
2224(mail)X
2424(systems,)X
2780(because)X
3113(they)X
3307(will)X
3486(at)X
3585(least)X
3791(be)X
3911(able)X
4101(to)X
720 5312(treat)N
923(the)X
1072(data)X
1264(as)X
1375(undifferentiated)X
2022(binary,)X
2323(and)X
2492(will)X
2672(not)X
2825(simply)X
3117(splash)X
3387(it)X
3471(onto)X
3672(the)X
3820(screen)X
4096(of)X
720 5424(unsuspecting)N
1246(users.)X
17 p
%%Page: 17 17
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(17)X
2520(-)X
3 f
14 s
720 704(Summary)N
1 f
12 s
720 944(Using)N
989(the)X
1147(Content-Type)X
1722(and)X
1901(Content-TransferEncoding)X
2974(header)X
3272(\256elds,)X
3545(it)X
3640(is)X
3745(possible)X
4101(to)X
720 1056(include,)N
1054(in)X
1154(a)X
1222(standardized)X
1734(way,)X
1943(arbitrary)X
2300(types)X
2528(of)X
2633(data)X
2819(objects)X
3117(in)X
3217(RFC)X
3423(822)X
3592(mail)X
3789(messages,)X
720 1168(without)N
1054(breaking)X
1431(any)X
1610(of)X
1730(the)X
1888(existing)X
2233(restrictions)X
2701(imposed)X
3067(by)X
3203(RFC)X
3424(821)X
3608(and)X
3787(RFC)X
4008(822.)X
720 1280(Using)N
992(the)X
1153("mulitpart")X
1627(content-type,)X
2175(it)X
2271(is)X
2377(possible)X
2734(to)X
2851(mix)X
3043(multiple)X
3407(objects)X
3722(of)X
3844(different)X
720 1392(types)N
977(in)X
1106(a)X
1203(single)X
1487(message.)X
1916(Additional)X
2383(optional)X
2754(header)X
3066(\256elds)X
3329(provide)X
3678(conventional)X
720 1504(mechanisms)N
1231(for)X
1378(certain)X
1676(extensions)X
2117(deemed)X
2452(desirable)X
2835(by)X
2966(many)X
3214(implementors.)X
3802(Finally,)X
4133(a)X
720 1616(number)N
1038(of)X
1142(useful)X
1401(content-types)X
1944(are)X
2086(de\256ned)X
2393(for)X
2529(general)X
2837(use)X
2989(by)X
3109(consenting)X
3550(user)X
3734(agents.)X
720 1840(For)N
877(more)X
1099(information,)X
1602(the)X
1744(authors)X
2051(of)X
2155(this)X
2318(document)X
2722(may)X
2912(be)X
3027(contacted)X
3421(via)X
3563(Internet)X
3887(mail:)X
2 f
1428 2064(Nathaniel)N
1832(Borenstein)X
2273(<nsb@thumper.bellcore.com>)X
1617 2176(Ned)N
1796(Freed)X
2050(<ned@hmcvax.claremont.edu>)X
3 f
14 s
720 2416(Acknowledgements)N
1 f
12 s
720 2656(This)N
928(RFC)X
1146(is)X
1248(the)X
1404(result)X
1656(of)X
1774(the)X
1930(collective)X
2344(effort)X
2596(of)X
2714(a)X
2795(large)X
3026(number)X
3358(of)X
3476(people,)X
3795(at)X
3903(several)X
720 2768(IETF)N
973(meetings)X
1371(and)X
1560(on)X
1706(the)X
1874(IETF-SMTP)X
2409(and)X
2598(IETF-822)X
3027(mailing)X
3372(lists.)X
3625(Although)X
4037(any)X
720 2880(enumeration)N
1228(seems)X
1489(doomed)X
1825(to)X
1926(suffer)X
2176(from)X
2389(egregious)X
2789(omissions,)X
3223(the)X
3368(following)X
3769(are)X
3914(among)X
720 2992(the)N
895(many)X
1165(contributors)X
1686(to)X
1817(this)X
2012(effort:)X
2333(Harald)X
2651(Alvestrand,)X
3153(Randall)X
3509(Atkinson,)X
3941(Kevin)X
720 3104(Carosso,)N
1081(Mark)X
1317(Crispin,)X
1653(Dave)X
1885(Crocker,)X
2248(Walt)X
2465(Daniels,)X
2812(Frank)X
3065(Dawson,)X
3432(Hitoshi)X
3744(Doi,)X
3941(Kevin)X
720 3216(Donnelly,)N
1159(Johnny)X
1493(Eriksson,)X
1910(Craig)X
2181(Everhart,)X
2594(Roger)X
2885(Fajman,)X
3254(Alain)X
3524(Fontaine,)X
3941(David)X
720 3328(Herron,)N
1058(Bruce)X
1330(Howard,)X
1706(Bill)X
1894(Janssen,)X
2254(Risto)X
2500(Kankkunen,)X
3010(Phil)X
3208(Karn,)X
3467(Tim)X
3671(Kehres,)X
4010(Neil)X
720 3440(Katin,)N
997(Steve)X
1250(Kille,)X
1506(Anders)X
1822(Klemets,)X
2206(John)X
2426(Klensin,)X
2788(Vincent)X
3131(Lau,)X
3343(Timo)X
3590(Lehtinen,)X
3995(John)X
720 3552(MacMillan,)N
1220(Rick)X
1450(McGowan,)X
1927(Leo)X
2125(Mclaughlin,)X
2641(Goli)X
2861(Montaser-Kohsari,)X
3633(Keith)X
3896(Moore,)X
720 3664(Mark)N
956(Needleman,)X
1447(John)X
1656(Noerenberg,)X
2162(David)X
2425(J.)X
2514(Pepper,)X
2833(Jonathan)X
3203(Rosenberg,)X
3666(Jan)X
3821(Rynning,)X
720 3776(Mark)N
953(Sherman,)X
1344(Keld)X
1556(Simonsen,)X
1984(Bob)X
2169(Smart,)X
2448(Einar)X
2682(Stefferud,)X
3089(Michael)X
3430(Stein,)X
3677(Taro)X
3885(Suzuki,)X
720 3888(Steve)N
968(Uhler,)X
1245(Stuart)X
1509(Vance,)X
1837(Erik)X
2037(van)X
2210(der)X
2367(Poel,)X
2595(Peter)X
2826(Vanderbilt,)X
3295(Greg)X
3520(Vaudreuil,)X
3962(Brian)X
720 4000(Wideen,)N
1108(Glenn)X
1407(Wright,)X
1768(and)X
1971(David)X
2270(Zimmerman.)X
2859(The)X
3073(authors)X
3420(apologize)X
3860(for)X
4037(any)X
720 4112(omissions)N
1128(from)X
1339(this)X
1502(list,)X
1668(which)X
1927(were)X
2138(certainly)X
2500(unintentional.)X
18 p
%%Page: 18 18
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(18)X
2520(-)X
3 f
14 s
720 704(References)N
1 f
12 s
720 944([REF-PS])N
1176(Adobe)X
1486(Systems,)X
1884(Inc.)X
2109(Postscript)X
2542(Language)X
2976(Reference)X
3422(Manual.)X
3819(Addison-)X
720 1056(Wesley,)N
1057(Reading,)X
1426(Mass.,)X
1700(1985.)X
720 1280([REF-SGML])N
1318(ISO)X
1508(TC97/SC18.)X
2052(Standard)X
2431(Generalized)X
2934(Markup)X
3275(Language.)X
3716(Tech.)X
3970(Rept.)X
720 1392(DIS)N
898(8879,)X
1138(ISO,)X
1340(1986.)X
720 1616([REF-TEX])N
1227(Knuth,)X
1515(Donald)X
1822(E.)X
1953(The)X
2127(TEXbook.)X
2578(Addison-Wesley,)X
3272(Reading,)X
3641(Mass.,)X
3915(1984.)X
720 1840([REF-TROFF])N
1348(Ossanna,)X
1731(Joseph)X
2027(F.)X
2139(NROFF/TROFF)X
2807(User's)X
3092(Manual.)X
3469(Bell)X
3665(Laboratories,)X
720 1952(Murray)N
1032(Hill,)X
1230(New)X
1435(Jersey,)X
1723(1976.)X
1987(Computing)X
2444(Science)X
2768(Technical)X
3173(Report)X
3459(No.54.)X
720 2176([REF-SCRIBE])N
1410(Scribe)X
1714(Systems.)X
2140(SCRIBE)X
2535(Document)X
2995(Production)X
3476(Software.)X
3930(Scribe)X
720 2288(Systems,)N
1088(1985.)X
1328(Fourth)X
1608(Edition.)X
720 2512([REF-ISO646])N
1386(International)X
1975(Standard--Information)X
2937(Processing--ISO)X
3667(7-bit)X
3946(coded)X
720 2624(character)N
1098(set)X
1229(for)X
1365(information)X
1844(interchange,)X
2342(ISO)X
2520(646:1983.)X
720 2848([REF-ISO-2022])N
1417(International)X
1957(Standard--Information)X
2871(Processing--ISO)X
3553(7-bit)X
3783(and)X
3994(8-bit)X
720 2960(coded)N
974(character)X
1352(sets--Code)X
1787(extension)X
2180(techniques,)X
2640(ISO)X
2818(2022:1986.)X
720 3184([REF-ANSI])N
1268(Coded)X
1572(Character)X
2000(Set--7-Bit)X
2439(American)X
2873(Standard)X
3269(Code)X
3526(for)X
3716(Information)X
720 3296(Interchange,)N
1223(ANSI)X
1470(X3.4-1986.)X
720 3520([REF-X400])N
1261(Schicker,)X
1654(Pietro,)X
1940("Message)X
2348(Handling)X
2739(Systems,)X
3116(X.400",)X
3449(Message)X
3818(Handling)X
720 3632(Systems)N
1068(and)X
1235(Distributed)X
1696(Applications,)X
2240(E.)X
2351(Stefferud,)X
2761(O-j.)X
2941(Jacobsen,)X
3340(and)X
3507(P.)X
3612(Schicker,)X
4000(eds.,)X
720 3744(North-Holland,)N
1334(1989,)X
1574(pp.)X
1718(3-41.)X
720 3968([RFC-821])N
1207(Postel,)X
1532(J.B.)X
1771(Simple)X
2110(Mail)X
2358(Transfer)X
2750(Protocol.)X
3190(August,)X
3557(1982,)X
3840(Network)X
720 4080(Information)N
1204(Center,)X
1509(RFC-821.)X
720 4304([RFC-822])N
1238(Crocker,)X
1621(D.)X
1787(Standard)X
2178(for)X
2339(the)X
2506(format)X
2812(of)X
2941(ARPA)X
3245(Internet)X
3594(text)X
3789(messages.)X
720 4416(August,)N
1045(1982,)X
1285(Network)X
1645(Information)X
2129(Center,)X
2434(RFC-822.)X
720 4640([RFC-934])N
1219(Rose,)X
1465(M.T.;)X
1714(Stefferud,)X
2126(E.A.)X
2356(Proposed)X
2743(standard)X
3099(for)X
3241(message)X
3622(encapsulation.)X
720 4752(January,)N
1067(1985,)X
1307(Network)X
1667(Information)X
2151(Center,)X
2456(RFC-934.)X
720 4976([RFC-1049])N
1239(Sirbu,)X
1497(M.A.)X
1749(Content-type)X
2278(header)X
2561(\256eld)X
2758(for)X
2896(Internet)X
3222(messages.)X
3659(March,)X
3960(1988,)X
720 5088(Network)N
1080(Information)X
1564(Center,)X
1869(RFC-1049.)X
720 5312([RFC-1113])N
1240(Linn,)X
1473(J.)X
1585(Privacy)X
1906(enhancement)X
2443(for)X
2583(Internet)X
2911(electronic)X
3320(mail:)X
3547(Part)X
3730(I)X
3790(-)X
3850(message)X
720 5424(encipherment)N
1270(and)X
1434 0.2356(authentication)AX
2006(procedures)X
2452([Draft].)X
2791(August,)X
3116(1989,)X
3356(Network)X
3716(Information)X
720 5536(Center,)N
1025(RFC-1113.)X
19 p
%%Page: 19 19
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(19)X
2520(-)X
720 688([RFC-1148])N
1257(Kille,)X
1518(S.E.)X
1746(Mapping)X
2138(between)X
2504(X.400\(1988\))X
3042(/)X
3114(ISO)X
3313(10021)X
3598(and)X
3782(RFC)X
4008(822.)X
720 800(March,)N
1019(1990,)X
1259(Network)X
1619(Information)X
2103(Center,)X
2408(RFC-1148.)X
720 1024([RFC-1154])N
1251(Robinson,)X
1681(D.;)X
1839(Ullmann,)X
2239(R.)X
2390(Encoding)X
2798(header)X
3094(\256eld)X
3304(for)X
3455(internet)X
3789(messages.)X
720 1136(April,)N
971(1990,)X
1211(Network)X
1571(Information)X
2055(Center,)X
2360(RFC-1154.)X
720 1360([REF-ATK])N
1232(Borenstein,)X
1716(Nathaniel)X
2134(S.,)X
2 f
2278(Multimedia)X
2765(Applications)X
3296(Development)X
3848(with)X
4058(the)X
720 1472(Andrew)N
1043(Toolkit,)X
1 f
1364(Prentice)X
1704(Hall,)X
1918(1990.)X
720 1696([REF-CCITT84c])N
1484(CCITT)X
1813(SG)X
1986(5/VII,)X
2270("Recommendations)X
3078(X.420,")X
3430(Message)X
3818(Handling)X
720 1808(Systems:)N
1091(Interpersonal)X
1623(Messaging)X
2063(User)X
2268(Agent)X
2527(Layer,)X
2800(October)X
3134(1984.)X
720 2032([REF-CCITT/ISO88b])N
1656(CCITT/ISO,)X
2177("CCITT)X
2532(Recommendations)X
3287(X.420/)X
3589(ISO)X
3781(IS)X
3904(10021-)X
720 2144(7",)N
855(Message)X
1215(Handling)X
1597(Systems:)X
1968(Interpersonal)X
2500(Messaging)X
2940(System,)X
720 2368([REF-ODA])N
1286(ISO)X
1503(8613;)X
1785(Information)X
2308(Processing:)X
2814(Text)X
3055(and)X
3258(Of\256ce)X
3562(System;)X
3936(Of\256ce)X
720 2480(Document)N
1145(Architecture)X
1651(\(ODA\))X
1946(and)X
2109(Interchange)X
2588(Format)X
2890(\(ODIF\),)X
3225(Part)X
3404(1-8)X
3556(1989.)X
720 2704([REF-ULAW])N
1304(***************)X
720 2928([REF-ALAW])N
1304(***************)X
720 3152([REF-DES])N
1197(****************)X
720 3376([REF-PBM])N
1218(****************)X
720 3600([REF-G3FAX])N
1324(************)X
720 3824([REF-ISO-10646])N
1442(************)X
720 4048([REF-ISO-8859])N
1394(**********)X
720 4272([REF-AFS])N
1191(************)X
20 p
%%Page: 20 20
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(20)X
2520(-)X
3 f
14 s
720 704(Appendix)N
1214([APP-CONTENTTYPES])X
2484(--)X
2588(Partial)X
2946(List)X
3161(of)X
3283(Prede\256ned)X
720 832(Content-Type)N
1415(Values)X
12 s
720 1072(TEXT)N
1 f
1026(--)X
1135(Indicates)X
1528(the)X
1691(body)X
1928(or)X
2053(body)X
2290(part)X
2485(contains)X
2851(textual)X
3159(information.)X
3707(The)X
3903(precise)X
720 1184(meaning)N
1076(of)X
1180(text)X
1349(body)X
1565(parts)X
1776(is)X
1864(given)X
2102(in)X
2201(Appendix)X
2604([APP-TEXT].)X
3 f
720 1408(MESSAGE)N
1 f
1218(--)X
1311(Indicates)X
1688(that)X
1862(the)X
2009(body)X
2230(or)X
2339(body)X
2560(part)X
2739(is)X
2832(an)X
2952(encapsulated)X
3479(message,)X
3858(with)X
4058(the)X
720 1520(syntax)N
999(of)X
1107(an)X
1225(RFC)X
1433(822)X
1604(message.)X
2029(If)X
2120(a)X
2190(character)X
2571(set)X
2705(speci\256cation)X
3219(is)X
3310(given,)X
3575(it)X
3656(applies)X
3956(to)X
4058(the)X
720 1632(uninterpreted)N
1263(textual)X
1555(\256elds)X
1792(in)X
1896(the)X
2043(RFC)X
2253(822)X
2426(message)X
2781(header)X
3067(area.)X
3305(Thus)X
3526(it)X
3610(can)X
3774(be)X
3895(used)X
4101(to)X
720 1744(represent)N
1100(address)X
1415(and)X
1581(subject)X
1905(information)X
2386(in)X
2487(non-ASCII)X
2939(character)X
3319(sets.)X
3513(The)X
3689(character)X
4069(set)X
720 1856(speci\256cation)N
1245(in)X
1358(the)X
1514("Content-type:)X
2121(message")X
2524(\256eld)X
2733(does)X
2948(NOT)X
3184(apply)X
3437(to)X
3551(the)X
3708(body)X
3939(of)X
4058(the)X
720 1968(encapsulated)N
1260(message.)X
1675(Thus,)X
1932(to)X
2048(encapsulate)X
2539(a)X
2623(message)X
2990(with)X
3202(non-ASCII)X
3669(characters)X
4101(in)X
720 2080(both)N
915(the)X
1057(header)X
1338(\256elds)X
1570(and)X
1733(in)X
1832(the)X
1974(body,)X
2214(you)X
2382(would)X
2646(need)X
2852(something)X
3277(like)X
3446(the)X
3588(following:)X
7 f
1008 2304(From:)N
1356(<ASCII)X
1762(form>)X
1008 2416(Subject:)N
1588(<ASCII)X
1994(form>)X
1008 2528 0.4062(Content-type:)AN
1878 0.3984(message/iso-10646)AX
1008 2752(From:)N
1356 0.4000(<iso-10646-form>)AX
1008 2864(Subject)N
1472 0.4000(<iso-10646-form>)AX
1008 2976 0.4062(Content-type:)AN
1820 0.4038(text/iso-10646)AX
1008 3200(Message)N
1472(body)X
1762(in)X
1936 0.4219(iso-10646)AX
2516 0.4219(character)AX
3096(set.)X
3 f
720 3424(MULTIPART)N
1 f
1341(--)X
1440(Indicates)X
1823(the)X
1977(body)X
2205(or)X
2321(body)X
2549(part)X
2735(contains)X
3092(multiple)X
3450(encapsulated)X
3984(body)X
720 3536(parts,)N
982(each)X
1210(of)X
1341(which)X
1627(may)X
1844(be)X
1986(of)X
2117(a)X
2211(different)X
2594(content-type.)X
3175(The)X
3376(precise)X
3700(syntax)X
4002(of)X
4133(a)X
720 3648("multipart")N
1176(message)X
1526(is)X
1614(de\256ned)X
1921(in)X
2020(Appendix)X
2423([APP-MULTIPART].)X
3 f
720 3872(DIGEST)N
1 f
1117(--)X
1217(Indicates)X
1601(that)X
1782(the)X
1936(body)X
2164(or)X
2280(body)X
2508(part)X
2694(is)X
2794(a)X
2873(digest)X
3139(of)X
3255(encapsulated)X
3789(messages.)X
720 3984(The)N
908(digest)X
1176(content-type)X
1696(is)X
1798(syntactically)X
2324(identical)X
2695(to)X
2808(the)X
2964(multipart)X
3355(content-type,)X
3898(but)X
4058(the)X
720 4096(parts)N
945(are)X
1101(to)X
1214(be)X
1343(interpreted)X
1799(as)X
1917(encapsulated)X
2453(messages)X
2854(rather)X
3117(than)X
3321(as)X
3439(simple)X
3734(body)X
3965(parts.)X
720 4208(The)N
912(digest)X
1184(content-type)X
1708(is)X
1814(also)X
2011(suitable)X
2353(for)X
2507(encapsulation)X
3078(of)X
3199(a)X
3283(single)X
3554(message)X
3921(with)X
4133(a)X
720 4320(pre\256x,)N
992(e.g.)X
1155(for)X
1291(a)X
1358(rejection)X
1720(message)X
2070(when)X
2302(mail)X
2498(cannot)X
2779(be)X
2894(delivered.)X
3 f
720 4544(BINARY)N
1 f
1127(--)X
1221(Indicates)X
1599(that)X
1774(the)X
1922(body)X
2144(or)X
2254(body)X
2476(part)X
2656(is)X
2750(binary)X
3026(data.)X
3265(A)X
3365(character)X
3750(set)X
3888(may)X
4085(be)X
720 4656(speci\256ed,)N
1120(but)X
1277(its)X
1402(automatic)X
1817(interpretation)X
2371(is)X
2469(unlikely)X
2818(to)X
2926(be)X
3050(meaningful.)X
3570(The)X
3753(parameters)X
720 4768(for)N
887(type)X
1108(binary)X
1409(are)X
1582(a)X
1680(set)X
1843(of)X
1979 0.2455(attribute/value)AX
2593(pairs,)X
2860(of)X
2996(the)X
3170(form)X
3413("NAME=VALUE",)X
720 4880(separated)N
1114(by)X
1240(the)X
1388(usual)X
1621(semicolons.)X
2132(The)X
2312(set)X
2449(of)X
2559(possible)X
2904(attributes)X
3293(to)X
3398(be)X
3519(de\256ned)X
3831(includes,)X
720 4992(but)N
867(is)X
955(not)X
1102(limited)X
1400(to:)X
2 f
1008 5216(NAME)N
1 f
1294(--)X
1382(a)X
1449(suggested)X
1852(name)X
2085(for)X
2221(the)X
2363(binary)X
2633(data)X
2818(as)X
2922(a)X
2989(\256le.)X
2 f
1008 5440(TYPE)N
1 f
1256(--)X
1344(the)X
1486(type)X
1676(of)X
1780(binary)X
2050(data)X
21 p
%%Page: 21 21
12 s 0 xH 0 xS 1 f
2 f
1 f
2344 400(-)N
2400(21)X
2520(-)X
2 f
1008 688(CONVERSIONS)N
1 f
1674(--)X
1770(the)X
1920(set)X
2059(of)X
2171(operations)X
2604(that)X
2781(have)X
2995(been)X
3209(performed)X
3642(on)X
3770(the)X
1008 800(data)N
1258(before)X
1593(putting)X
1955(it)X
2098(in)X
2262(the)X
2469(mail)X
2730(\(and)X
2990(before)X
3324(any)X
3551(Content-)X
1008 912(TransferEncoding)N
1736(that)X
1914(might)X
2172(have)X
2387(been)X
2602(applied\).)X
2975(If)X
3073(multiple)X
3429(conversions)X
1008 1024(have)N
1229(occurred,)X
1629(they)X
1834(should)X
2129(be)X
2259(speci\256ed)X
2640(in)X
2754(the)X
2910(order)X
3151(they)X
3355(were)X
3580(applied,)X
1008 1136(and)N
1171(separated)X
1559(by)X
1679(commas.)X
720 1360(The)N
896(values)X
1168(for)X
1306(these)X
1530(attributes)X
1915(are)X
2059(left)X
2214(unde\256ned)X
2620(at)X
2717(present,)X
3046(but)X
3196(may)X
3389(require)X
3689(speci\256cation)X
720 1472(in)N
819(the)X
961(future.)X
1263(An)X
1404(example)X
1755(of)X
1859(a)X
1926(common)X
2287(\(though)X
2610(discouraged\))X
3131(usage)X
3374(might)X
3623(be:)X
7 f
1008 1696 0.4062(Content-type:)AN
1878(binary;)X
2342 0.4062(name=foo.tar;)AX
3154 0.4219(type=tar;)AX
3734(\\)X
1472 1808 0.3884(conversions=compress,uuencode)AN
1 f
720 2032(However,)N
1161(the)X
1344(use)X
1537(of)X
1682(such)X
1924(mechanisms)X
2466(as)X
2612(uuencode)X
3047(and)X
3252(compress)X
3681(is)X
3811(explicitly)X
720 2144(discouraged,)N
1248(in)X
1362(favor)X
1604(of)X
1723(the)X
1880(more)X
2117(standardized)X
2643(Content-TransferEncoding)X
3713(mechanism.)X
720 2256(In)N
836(particular,)X
1266(uuencode)X
1671(is)X
1771(not)X
1930(well-suited)X
2394(for)X
2543(mail)X
2752(transport)X
3131(because)X
3473(it)X
3564(is)X
3665(ill-de\256ned,)X
4122(it)X
720 2368(comes)N
992(in)X
1093(several)X
1392(incompatible)X
1922(versions,)X
2292(many)X
2532(of)X
2638(which)X
2899(do)X
3021(not)X
3170(work)X
3393(in)X
3494(a)X
3562(pipe,)X
3777(and)X
3941(which)X
720 2480(use)N
880(characters)X
1303(that)X
1480(do)X
1608(not)X
1763(translate)X
2122(well)X
2321(into)X
2504(certain)X
2800(representations)X
3416(\(e.g.)X
3620(EBCDIC\))X
4037(and)X
720 2592(are)N
863(not)X
1011(transmitted)X
1470(reliably)X
1789(over)X
1984(certain)X
2271(connections)X
2755(\(e.g.)X
2950(those)X
3177(that)X
3346(remove)X
3659(trailing)X
3962(white)X
720 2704(space)N
958(from)X
1169(a)X
1236(line\).)X
720 2928(The)N
930(recommended)X
1536(action)X
1832(for)X
2004(an)X
2155 0.2548(implementation)AX
2821(that)X
3027(receives)X
3404(binary)X
3711(mail)X
3944(of)X
4085(an)X
720 3040(unrecognized)N
1292(type)X
1511(is)X
1628(to)X
1756(simply)X
2071(offer)X
2311(to)X
2439(put)X
2615(the)X
2786(data)X
3000(in)X
3128(a)X
3224(\256le,)X
3424(with)X
3648(any)X
3839(Content-)X
720 3152(TransferEncoding)N
1463(undone,)X
1818(or)X
1946(perhaps)X
2293(to)X
2416(use)X
2592(it)X
2694(as)X
2822(input)X
3068(to)X
3191(a)X
3282(user-speci\256ed)X
3864(process.)X
720 3264(Implementations)N
1406(are)X
1562(warned)X
1883(NOT)X
2118(to)X
2230(implement)X
2680(a)X
2760(path-search)X
3241(mechanism)X
3717(whereby)X
4085(an)X
720 3376(arbitrary)N
1083(program)X
1440(named)X
1728(in)X
1834(the)X
1983(Content-type)X
2517(header)X
2805(\(e.g.)X
3008(the)X
3158("type=")X
3488(sub\256eld\))X
3856(is)X
3952(found)X
720 3488(and)N
894(executed)X
1272(using)X
1515(the)X
1668(binary)X
1949(data)X
2145(as)X
2260(input.)X
2541(Such)X
2768(an)X
2894 0.2548(implementation)AX
3534(could)X
3782(open)X
4003(up)X
4133(a)X
720 3600(signi\256cant)N
1145(security)X
1474(problem,)X
1843(the)X
1985(elucidation)X
2438(of)X
2542(which)X
2801(is)X
2889(left)X
3042(as)X
3146(an)X
3261(exercise)X
3601(for)X
3737(the)X
3879(reader.)X
3 f
720 3824(AUDIO)N
1 f
1065(--)X
1203(Indicates)X
1577(that)X
1748(the)X
1892(body)X
2110(or)X
2216(body)X
2435(part)X
2612(contains)X
2960(audio)X
3201(data.)X
3437(The)X
3614(\256rst)X
3790(parameter)X
720 3936(speci\256es)N
1081(the)X
1229(audio)X
1473(representation)X
2049(format;)X
2362(prede\256ned)X
2797(case-insensitive)X
3436(values)X
3711(are)X
3858("U-law")X
720 4048([REF-ULAW])N
1322(and)X
1503("A-law")X
1863([REF-ALAW].)X
2513(\(U-law)X
2827(and)X
3009(A-law)X
3292(are)X
3453(the)X
3614(American)X
4037(and)X
720 4160(European)N
1130(audio)X
1385(telephony)X
1806(standards.\))X
2290(The)X
2481(second)X
2789(parameter)X
3216(may)X
3422(be)X
3553(used)X
3769(to)X
3884(name)X
4133(a)X
720 4272(header)N
1001(format)X
1282(\(e.g.)X
1478("Sun"\).)X
1810(The)X
1985(third)X
2192(parameter)X
2603(may)X
2794(be)X
2910(used)X
3111(to)X
3211(give)X
3402(the)X
3545(size,)X
3744(in)X
3844(bytes,)X
4096(of)X
720 4384(the)N
869(header)X
1157(that)X
1332(precedes)X
1699(the)X
1847(actual)X
2108(audio)X
2352(data.)X
2591(This)X
2792(byte)X
2988(count)X
3232(applies)X
3535(to)X
3640(the)X
3788(raw)X
3962(audio)X
720 4496(data,)N
929(not)X
1076(to)X
1175(the)X
1317(size)X
1491(of)X
1595(the)X
1737(data)X
1922(as)X
2026(represented)X
2494(in,)X
2617(for)X
2753(example,)X
3128(the)X
3270(base64)X
3561(encoding.)X
3 f
720 4720(IMAGE)N
1090(--)X
1 f
1154(Indicates)X
1536(that)X
1715(the)X
1867(body)X
2093(or)X
2208(body)X
2435(part)X
2620(contains)X
2976(an)X
3102(image.)X
3421(The)X
3606(\256rst)X
3790(parameter)X
720 4832(specializes)N
1182(the)X
1344(image)X
1624(format;)X
1952(prede\256ned)X
2402(case)X
2611(insensitive)X
3066(values)X
3355(include)X
3682("G3Fax")X
4064(for)X
720 4944(Group)N
989(Three)X
1238(Fax)X
1406([REF-G3FAX])X
2011(and)X
2175("pbm",)X
2473("pgm",)X
2771(and)X
2935("ppm")X
3209(for)X
3346(the)X
3489("portable)X
3869(bitmap")X
720 5056(formats)N
1038([REF-PBM])X
1536(for)X
1672(black)X
1905(and)X
2068(white,)X
2330(grey)X
2525(scale,)X
2766(or)X
2870(color)X
3092(images.)X
3 f
720 5280(PEM-MESSAGE)N
1 f
1474(--)X
1577(Indicates)X
1964(that)X
2148(the)X
2305(body)X
2536(or)X
2655(body)X
2887(part)X
3077(is)X
3181(an)X
3312(encapsulated)X
3850(message)X
720 5392(encrypted)N
1127(with)X
1325(DES)X
1533(encryption)X
1972([REF-DES])X
2452(and)X
2617(formatted)X
3018(as)X
3124(the)X
3268(encapsulated)X
3792(portion)X
4096(of)X
720 5504(Privacy)N
1041(Enhanced)X
1448(Mail)X
1657(according)X
2064(to)X
2166(RFC)X
2374(1113)X
2594([RFC-1113].)X
3163(In)X
3271(this)X
3438(case,)X
3656(the)X
3802(body-part)X
720 5616(is)N
821(ONLY)X
1124(the)X
1279(privacy-enhanced)X
2001(encapsulated)X
2536(part)X
2723(that,)X
2929(according)X
3345(to)X
3456(RFC)X
3673(1113,)X
3925(occurs)X
720 5728(between)N
1075(the)X
1227(encapsulation)X
1791(boundaries.)X
2295(The)X
2479(boundaries)X
2935(themselves)X
3398(\(lines)X
3647(of)X
3762(the)X
3915(form)X
4137(")X
720 5840(-----PRIVACY-ENHANCED)N
1883(MESSAGE)X
2354(BOUNDARY-----"\))X
3151(are)X
3293(not)X
3440(included.)X
22 p
%%Page: 22 22
12 s 0 xH 0 xS 1 f
3 f
1 f
2344 400(-)N
2400(22)X
2520(-)X
3 f
720 688(PARTIAL-MESSAGE)N
1 f
1682(--)X
1776(Indicates)X
2155(that)X
2331(the)X
2480(body)X
2703(or)X
2814(body)X
3037(part)X
3218(is)X
3313(a)X
3387(fragment)X
3766(of)X
3877(a)X
3951(larger)X
720 800(message.)N
1140(Three)X
1411(sub\256elds)X
1798(must)X
2031(be)X
2168(speci\256ed)X
2556(in)X
2677(the)X
2841(content-type)X
3368(\256eld:)X
3635(The)X
3830(\256rst)X
4024(is)X
4133(a)X
720 912(unique)N
1014(identi\256er,)X
1419(to)X
1527(be)X
1651(used)X
1860(to)X
1968(match)X
2237(the)X
2388(parts)X
2608(together.)X
3005(The)X
3188(second,)X
3512(an)X
3636(integer,)X
3961(is)X
4058(the)X
720 1024(part)N
897(number.)X
1266(The)X
1443(third,)X
1676(another)X
1992(integer,)X
2310(is)X
2400(the)X
2544(total)X
2742(number)X
3062(of)X
3168(parts.)X
3429(Thus,)X
3671(part)X
3847(2)X
3921(of)X
4027(a)X
4096(3-)X
720 1136(part)N
894(message)X
1244(might)X
1493(have)X
1699(the)X
1841(following)X
2239(header)X
2520(\256eld:)X
7 f
1008 1360 0.4062(Content-type:)AN
1820 0.4000(Partial-Message;)AX
2806 0.4018(oc=jpbe0M2Yt4s;)AX
3734(2;)X
3908(3)X
1 f
720 1584(When)N
984(the)X
1136(parts)X
1357(of)X
1471(a)X
1548(message)X
1908(broken)X
2209(up)X
2339(in)X
2448(this)X
2622(manner)X
2946(are)X
3099(put)X
3257(together,)X
3632(the)X
3785(result)X
4034(is)X
4133(a)X
720 1696(complete)N
1106(RFC-822)X
1495(format)X
1784(message,)X
2165(which)X
2431(may)X
2628(have)X
2841(its)X
2963(own)X
3159(Content-type)X
3693(header)X
3981(\256eld,)X
720 1808(and)N
883(thus)X
1067(may)X
1257(contain)X
1565(any)X
1728(other)X
1950(data)X
2135(type.)X
3 f
720 2032(EXTERNAL-REFERENCE)N
1 f
1924(--)X
2037(Indicates)X
2434(that)X
2628(the)X
2796(body)X
3038(or)X
3168(body)X
3410(part)X
3610(is)X
3724(primarily)X
4133(a)X
720 2144(placeholder)N
1199(for)X
1340(the)X
1487(data)X
1677(that)X
1851(are)X
1998(intended)X
2358(to)X
2461(be)X
2580(conveyed,)X
3001(presumably)X
3478(because)X
3811(too)X
3962(much)X
720 2256(data)N
916(is)X
1015(involved)X
1387(for)X
1534(the)X
1687(underlying)X
2139(mail)X
2346(transport)X
2723(mechanism)X
3197(to)X
3308(handle.)X
3649(The)X
3835(sub\256elds)X
720 2368(are,)N
900(as)X
1018(in)X
1131(the)X
1287(case)X
1490(of)X
1607(the)X
1762("binary")X
2123(content-type,)X
2666 0.2277(attribute-value)AX
3266(pairs.)X
3538(In)X
3655(this)X
3831(case,)X
4058(the)X
720 2480(sub\256elds)N
1109(describe)X
1478(a)X
1569(mechanism)X
2056(for)X
2216(accessing)X
2633(the)X
2800(binary)X
3095(data.)X
3377(The)X
3576(set)X
3732(of)X
3861(possible)X
720 2592(attributes)N
1103(includes,)X
1472(but)X
1619(is)X
1707(not)X
1854(limited)X
2152(to:)X
2 f
1008 2816(FILENAME)N
1 f
1497(--)X
1585(The)X
1759(name)X
1992(of)X
2096(a)X
2163(\256le)X
2310(that)X
2479(contains)X
2824(the)X
2966(external)X
3301(data.)X
2 f
1008 3040(SITE)N
1 f
1235(--)X
1334(one)X
1508(or)X
1623(more)X
1856(domain)X
2180(names,)X
2485(comma)X
2804(separated,)X
3227(of)X
3343(machines)X
3743(that)X
1008 3152(are)N
1150(known)X
1435(to)X
1534(have)X
1740(access)X
2010(to)X
2109(the)X
2251(data)X
2436(\256le.)X
1008 3376(REAL-TYPE)N
1555(--)X
1643(The)X
1817(real)X
1986(content-type)X
2492(of)X
2596(the)X
2738(data,)X
2947(once)X
3153(retrieved.)X
1008 3600(EXPIRATION)N
1614(--)X
1710(The)X
1892(date)X
2085(\(in)X
2224(the)X
2374(format)X
2663("month)X
2980(day,)X
3175(year"\))X
3444(after)X
3653(which)X
1008 3712(the)N
1150(existence)X
1533(of)X
1637(the)X
1779(external)X
2114(data)X
2299(is)X
2387(not)X
2534(guaranteed.)X
720 3936(With)N
937(the)X
1079(emerging)X
1467(possibility)X
1892(of)X
1996(very)X
2191(wide-area)X
2595(\256le)X
2742(systems)X
3070([REF-AFS],)X
3565(it)X
3643(becomes)X
4005(very)X
720 4048(hard)N
920(to)X
1024(know)X
1266(in)X
1370(advance)X
1715(the)X
1862(set)X
1998(of)X
2107(machines)X
2500(where)X
2764(a)X
2836(\256le)X
2988(will)X
3167(and)X
3335(will)X
3514(not)X
3666(be)X
3785(accessible)X
720 4160(directly)N
1041(from)X
1254(the)X
1398(\256le)X
1547(system.)X
1888(Therefore)X
2294(it)X
2374(makes)X
2647(sense)X
2882(to)X
2984(provide)X
3305(both)X
3503(a)X
3573(\256le)X
3723(name,)X
3983(to)X
4085(be)X
720 4272(tried)N
937(directly,)X
1296(and)X
1475(the)X
1633(name)X
1882(of)X
2002(one)X
2181(or)X
2301(more)X
2539(sites)X
2749(from)X
2975(which)X
3249(the)X
3406(\256le)X
3568(is)X
3671(known)X
3971(to)X
4085(be)X
720 4384(accessible.)N
1194(An)X
1346 0.2548(implementation)AX
1987(can)X
2157(try)X
2300(to)X
2411(retrieve)X
2742(remote)X
3046(\256les)X
3242(using)X
3486(FTP)X
3687(or)X
3803(any)X
3978(other)X
720 4496(protocol,)N
1102(using)X
1347(anonymous)X
1827(\256le)X
1987(retrieval)X
2346(or)X
2463(prompting)X
2901(the)X
3056(user)X
3253(for)X
3402(the)X
3557(necessary)X
3967(name)X
720 4608(and)N
887(password.)X
1325(However,)X
1729(the)X
1875 0.2316(external-reference)AX
2605(mechanism)X
3072(is)X
3165(not)X
3317(intended)X
3678(to)X
3782(be)X
3902(limited)X
720 4720(to)N
837(\256le)X
1002(retrieval.)X
1414(One)X
1616(can)X
1792(imagine,)X
2169(for)X
2323(example,)X
2716(using)X
2966(unique)X
3270(identi\256ers)X
3697(and)X
3878(a)X
3962(video)X
720 4832(server)N
981(for)X
1119(external)X
1456(references)X
1878(to)X
1979(video)X
2220(clips.)X
2477(However,)X
2880(this)X
3046(memo)X
3314(explicitly)X
3706(de\256nes)X
4005(only)X
720 4944(the)N
874(FILENAME)X
1395(and)X
1570(SITE)X
1809(attributes)X
2203(for)X
2350(retrieval)X
2707(purposes,)X
3107(as)X
3222(this)X
3396(is)X
3495(the)X
3648(only)X
3854(retrieval)X
720 5056(method)N
1033(that)X
1202(is)X
1290(currently)X
1662(widely)X
1948(applicable.)X
2417(Other)X
2660(attributes)X
3043(may)X
3233(be)X
3348(de\256ned)X
3655(as)X
3759(needed.)X
720 5280(The)N
901("REAL-TYPE")X
1533(attribute)X
1886(may)X
2083(be)X
2205(used)X
2412(to)X
2518(specify)X
2828(a)X
2903(new)X
3095(content-type)X
3609(header)X
3898(\256eld)X
4101(to)X
720 5392(be)N
845(applied)X
1163(to)X
1272(the)X
1424(data)X
1619(once)X
1835(retrieved,)X
2235(as)X
2348(the)X
2499(data)X
2693(are)X
2844(assumed)X
3208(to)X
3316(be)X
3440(only)X
3644(the)X
3795(body)X
4020(of)X
4133(a)X
720 5504(message,)N
1109(not)X
1271(including)X
1674(any)X
1852(header)X
2149(information.)X
2692(Note)X
2919(that)X
3104(semicolons)X
3577(may)X
3783(be)X
3914(quoted)X
720 5616(within)N
999(sub\256elds.)X
1421(Thus)X
1646(an)X
1769(external)X
2112(reference)X
2503(to)X
2610(an)X
2733(image)X
3001(in)X
3108(G3FAX)X
3448(format)X
3737(might)X
3994(have)X
720 5728(the)N
862(following)X
1260(content-type)X
1766(header)X
2047(\256eld:)X
23 p
%%Page: 23 23
12 s 0 xH 0 xS 1 f
7 f
1 f
2344 400(-)N
2400(23)X
2520(-)X
7 f
1008 688 0.4062(Content-Type:)AN
1820 0.3958(external-reference;)AX
2980(\\)X
1392 800 0.3864(name=/usr/local/images/contact.g3;)AN
3422(\\)X
1392 912 0.3900(site=thumper.bellcore.com;)AN
2958(\\)X
1392 1024 0.3984(real-type="image;)AN
2436(g3fax")X
2842(\\)X
1392 1136 0.4167(expiration)AN
2030(=)X
2146 0.4167("September)AX
2784(23,)X
3016(1997")X
1 f
720 1360(If)N
811(a)X
881(message)X
1235(is)X
1327(of)X
1435(content-type)X
1945 0.1781("external-reference",)AX
2777(then)X
2971(the)X
3117(actual)X
3376(body)X
3596(of)X
3704(the)X
3850(message)X
720 1472(is)N
808(ignored.)X
3 f
720 1696(POSTSCRIPT)N
1 f
1350(--)X
1442(Indicates)X
1818(the)X
1964(body)X
2184(or)X
2292(body)X
2513(part)X
2692(consists)X
3025(of)X
3134(information)X
3618(encoded)X
3968(using)X
720 1808(the)N
875(Postscript)X
1290(Page)X
1513(De\256nition)X
1939(Language)X
2355(developed)X
2787(by)X
2919(Adobe)X
3211(Systems,)X
3591(Inc.)X
3774([REF-PS].)X
720 1920(For)N
878(type)X
1069("postscript")X
1546(the)X
1689(\256rst)X
1863(parameter)X
2274(is)X
2363(a)X
2431(version-number)X
3065(\256eld)X
3261(\("1.0",)X
3540("2.0",)X
3787(or)X
3892("null"\),)X
720 2032(and)N
890(the)X
1039(second)X
1337(\256eld)X
1539(is)X
1634(a)X
1708(comma-separated)X
2418(list)X
2566(of)X
2676(resource)X
3032(references,)X
3482(including,)X
3900(but)X
4053(not)X
720 2144(limited)N
1018(to,)X
1141("laserprep2.9",)X
1740("laserprep3.0",)X
2339("laserprep3.1",)X
2938(and)X
3101("laserprep4.0".)X
3 f
720 2368(TeX)N
1 f
946(--)X
1060(Indicates)X
1458(the)X
1626(body)X
1869(or)X
2000(body)X
2243(part)X
2444(contains)X
2816(embedded)X
3263(formatting)X
3721(information)X
720 2480(according)N
1124(to)X
1223(the)X
1365(syntax)X
1640(of)X
1744(the)X
1886(TeX)X
2081(document)X
2485(production)X
2926(language.)X
3322([REF-TEX])X
3 f
720 2704(TROFF)N
1 f
1083(--)X
1184(Indicates)X
1569(the)X
1724(body)X
1953(or)X
2070(body)X
2299(part)X
2486(contains)X
2844(embedded)X
3277(formatting)X
3721(information)X
720 2816(according)N
1150(to)X
1275(the)X
1443(syntax)X
1744(speci\256ed)X
2136(for)X
2298(the)X
2466(TROFF)X
2814(formatting)X
3270(package)X
3635(developed)X
4080(by)X
720 2928(AT&T)N
1006(Bell)X
1191(Laboratories.)X
1726([REF-TROFF].)X
2368(For)X
2525(type)X
2715("troff")X
2988(the)X
3130(parameters)X
3577(include,)X
3910(but)X
4058(are)X
720 3040(not)N
868(limited)X
1167(to,)X
1291("eqn",)X
1557("tbl",)X
1786("me",)X
2031(and)X
2194(the)X
2336(names)X
2606(of)X
2710(other)X
2932(troff)X
3127(macro)X
3392(packages.)X
3817(Alternate)X
720 3152(character)N
1098(set)X
1229(speci\256cations)X
1777(are)X
1919(acceptable.)X
3 f
720 3376(ODA)N
1 f
966(--)X
1063(Indicates)X
1444(that)X
1622(the)X
1773(body)X
1998(or)X
2111(body)X
2337(part)X
2521(is)X
2619(an)X
2744(ODA)X
2985(document,)X
3423(containing)X
3864(a)X
3941(whole)X
720 3488(document)N
1140(encoded)X
1501(according)X
1921(to)X
2036(the)X
2194(Of\256ce)X
2474(Document)X
2915(Architecture)X
3436([REF-ODA].)X
4026(The)X
720 3600(single)N
1005(parameter)X
1446(following)X
1875("Content-type:)X
2499(ODA")X
2800(should)X
3111(be)X
3258(either)X
3534(";)X
3656(ODIF")X
3974(or)X
4110(";)X
720 3712(ODL/SDIF")N
1223(to)X
1331(indicate)X
1670(the)X
1821(ODA)X
2061(encoding)X
2447(type.)X
2694(Any)X
2891(additional)X
3309(information)X
3796(needed)X
4101(to)X
720 3824(process)N
1037(the)X
1184(document)X
1593(must)X
1809(be)X
1929(included)X
2290(in)X
2394(the)X
2541(document)X
2951(pro\256le)X
3232(which)X
3497(is)X
3591(included)X
3953(in)X
4058(the)X
720 3936(document.)N
3 f
720 4160(DVI)N
1 f
936(--)X
1041(Indicates)X
1430(the)X
1589(body)X
1822(or)X
1943(body)X
2176(part)X
2367(is)X
2472(information)X
2969(in)X
3086(the)X
3246(device)X
3540(independent)X
4053(\256le)X
720 4272(format)N
1001(produced)X
1383(by)X
1503(TROFF)X
1825(or)X
1929(TeX.)X
3 f
720 4496(X-BE2)N
1 f
1035(--)X
1137(Indicates)X
1523(the)X
1679(body)X
1910(or)X
2029(body)X
2260(part)X
2449(is)X
2552(Andrew-format)X
3189(information)X
3683([REF-ATK].)X
720 4608(The)N
894(\256rst)X
1067(parameter)X
1477(is)X
1565(the)X
1707(Andrew)X
2040(datastream)X
2482(version)X
2789(number,)X
3131(and)X
3294(the)X
3436(second)X
3 f
720 4832("X-"atom)N
1 f
1163(--)X
1255(Any)X
1448(type)X
1642(value)X
1880(beginning)X
2294(with)X
2494(the)X
2641(characters)X
3061("X-")X
3269(and)X
3437(not)X
3589(de\256ned)X
3901(here)X
4096(or)X
720 4944(in)N
836(another)X
1166(RFC)X
1388(is)X
1493(a)X
1577(private)X
1886(value,)X
2160(to)X
2276(be)X
2407(used)X
2623(by)X
2759(consenting)X
3216(mail)X
3428(systems)X
3772(by)X
3908(mutual)X
720 5056(agreement.)N
1194(Any)X
1383(format)X
1664(without)X
1982(a)X
2049(rigorous)X
2393(and)X
2556(public)X
2821(de\256nition)X
3214(should)X
3494(be)X
3609(named)X
3890(with)X
4085(an)X
720 5168("X-")N
923(pre\256x.)X
24 p
%%Page: 24 24
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(24)X
2520(-)X
3 f
14 s
720 704(Appendix)N
1214([APP-TEXT])X
1876(--)X
1980(The)X
2194(TEXT)X
2525(Content-type)X
3184(and)X
3392(the)X
720 832(M)N
826(AILASCII)X
1365(Character)X
1886(Set)X
1 f
12 s
720 1072(In)N
828(keeping)X
1161(with)X
1360(historical)X
1747(practice)X
2082(and)X
2250(expectations,)X
2785(the)X
2932(default)X
3229(content-type)X
3740(for)X
3881(internet)X
720 1184(mail)N
938(is)X
1048("text",)X
1341(and)X
1526(the)X
1690(default)X
2004(character)X
2404(set)X
2557(is)X
2667(the)X
2830(one)X
3014(speci\256ed)X
3401(by)X
3542(RFC)X
3768(822.)X
4005(This)X
720 1296(content-type)N
1226(can)X
1384(be)X
1499(explicitly)X
1888(speci\256ed)X
2254(as)X
2358("text",)X
2629(and)X
2792(the)X
2934(character)X
3312(set)X
3443(as)X
3547("mailascii".)X
720 1520(Alternately,a)N
1254(different)X
1619(character)X
2006(set)X
2146(may)X
2345(be)X
2469(speci\256ed,)X
2868(in)X
2977(which)X
3246(case)X
3446(the)X
3598(body)X
3824(text)X
4003(is)X
4101(in)X
720 1632(the)N
863(speci\256ed)X
1230(character)X
1609(set.)X
1789(A)X
1883(recommended)X
2454(list)X
2597(of)X
2702(prede\256ned)X
3133(character)X
3511(sets)X
3679(can)X
3837(be)X
3952(found)X
720 1744(at)N
814(the)X
956(end)X
1119(of)X
1223(this)X
1386(appendix.)X
1811(Note)X
2022(that)X
2191(if)X
2274(the)X
2417(speci\256ed)X
2784(character)X
3163(set)X
3295(includes)X
3641(8-bit)X
3848(data,)X
4058(the)X
720 1856(Content-TransferEncoding)N
1787(header)X
2079(\256eld)X
2285(is)X
2384(required)X
2740(in)X
2850(order)X
3087(to)X
3196(transmit)X
3546(the)X
3698(message)X
4058(via)X
720 1968(SMTP.)N
720 2192(The)N
905(default)X
1208(character)X
1597(set)X
1739(has)X
1902(been)X
2119(the)X
2272(subject)X
2580(of)X
2695(some)X
2933(confusion)X
3347(and)X
3521(ambiguity)X
3947(in)X
4058(the)X
720 2304(past.)N
947(Its)X
1067(de\256nition)X
1460(is)X
1548(spelled)X
1845(out)X
1992(here)X
2182(to)X
2281(reduce)X
2562(such)X
2762(ambiguity)X
3177(in)X
3276(the)X
3418(future.)X
720 2528(The)N
909(MAILASCII)X
1443(character)X
1836(set)X
1982(is)X
2085(based)X
2343(on)X
2479(a)X
2562(series)X
2821(of)X
2941(standards)X
3344(and)X
3523(on)X
3659(the)X
3817(historical)X
720 2640(standard)N
1076(practice)X
1412(in)X
1517(the)X
1665(Internet)X
1995(mail)X
2197(community.)X
2713(However,)X
3118(the)X
3265(precise)X
3567(meaning)X
3928(of)X
4037(this)X
720 2752(character)N
1102(set)X
1237(has)X
1393(been)X
1603(the)X
1749(subject)X
2050(of)X
2158(some)X
2389(debate.)X
2717(In)X
2825(this)X
2993(appendix,)X
3399(therefore,)X
3800(we)X
3941(de\256ne)X
720 2864(the)N
874(MAILASCII)X
1405(character)X
1794(set.)X
1984(It)X
2078(is)X
2177(our)X
2340(belief)X
2595(that)X
2775(this)X
2949(de\256nition)X
3353(corresponds)X
3852(with)X
4058(the)X
720 2976(default)N
1012(assumptions)X
1512(made)X
1746(for)X
1883(messages)X
2271(without)X
2590(Content-type)X
3118(headers,)X
3461(as)X
3566(de\256ned)X
3874(by)X
3995(RFC)X
720 3088(822.)N
720 3312(The)N
925(message)X
1306(body)X
1553(is)X
1672(coded)X
1957(in)X
2088(the)X
2262(character)X
2672(set)X
2835(of)X
2971(American)X
3407(Standard)X
3805(Code)X
4064(for)X
720 3424(Information)N
1221(Interchange,)X
1741(sometimes)X
2194(known)X
2496(as)X
2617("7-bit)X
2879(ASCII".)X
3233(This)X
3445(is)X
3550(not)X
3713(an)X
3844(arbitrary)X
720 3536(seven-bit)N
1103(character)X
1487(code,)X
1724(but)X
1878(indicates)X
2252(that)X
2428(the)X
2577(message)X
2934(body)X
3157(uses)X
3353(character)X
3738(coding)X
4031(that)X
720 3648(uses)N
921(the)X
1075(exact)X
1315(correspondence)X
1955(of)X
2071(codes)X
2325(to)X
2435(characters)X
2861(speci\256ed)X
3238(in)X
3348(ASCII.)X
3681(National)X
4048(use)X
720 3760(variations)N
1145(of)X
1270(ISO646)X
1613([REF-ISO646])X
2228(are)X
2391(not)X
2559(ASCII,)X
2878(and)X
3062(neither)X
3375(an)X
3512(explicit)X
3848("ASCII")X
720 3872(character)N
1104(set,)X
1265(nor)X
1423("MAILASCII",)X
2050(nor)X
2208(the)X
2356(default)X
2654(\(omission)X
3063(of)X
3173(a)X
3246(character)X
3630(set\))X
3799(should)X
4085(be)X
720 3984(used)N
947(when)X
1207(characters)X
1650(are)X
1820(coded)X
2102(using)X
2362(them.)X
2679(\(Discussion:)X
3211(RFC821)X
3588(very)X
3811(explicitly)X
720 4096(speci\256es)N
1086("ASCII",)X
1473(and)X
1646(references)X
2100(an)X
2225(earlier)X
2506(version)X
2823(of)X
2937(the)X
3089(American)X
3503(Standard)X
3879(cited)X
4101(in)X
720 4208([REF-ANSI].)N
1310(Whether)X
1689(that)X
1881(speci\256cation,)X
2439(rather)X
2711(than)X
2924(a)X
3014(reference)X
3421(to)X
3544(an)X
3683(International)X
720 4320(Standard,)N
1140(was)X
1343(done)X
1584(deliberately)X
2094(or)X
2228(out)X
2405(of)X
2539(convenience)X
3074(or)X
3207(ignorance,)X
3664(is)X
3781(no)X
3930(longer)X
720 4432(interesting:)N
1184(insofar)X
1481(as)X
1591(one)X
1760(of)X
1870(the)X
2018(purposes)X
2389(of)X
2499(specifying)X
2930(a)X
3003(content-type)X
3515(and)X
3684(character)X
4069(set)X
720 4544(is)N
813(to)X
917(permit)X
1198(the)X
1345(receiver)X
1684(to)X
1787(unambiguously)X
2408(determine)X
2822(how)X
3015(the)X
3161(sender)X
3440(intended)X
3800(the)X
3946(coded)X
720 4656(message)N
1085(to)X
1199(be)X
1329(interpreted,)X
1810(assuming)X
2212(anything)X
2588(other)X
2825(than)X
3030("strict)X
3301(ASCII")X
3630(as)X
3750(the)X
3908(default)X
720 4768(would)N
999(risk)X
1182(unintentional)X
1730(and)X
1908(incompatible)X
2451(changes)X
2800(to)X
2914(the)X
3071(semantics)X
3490(of)X
3609(messages)X
4011(now)X
720 4880(being)N
959(transmitted.)X
1442(This)X
1639(also)X
1820(implies)X
2130(that)X
2301(messages)X
2690(containing)X
3123(characters)X
3540(coded)X
3796(according)X
720 4992(to)N
841(national)X
1197(variations)X
1622(on)X
1763(ISO646,)X
2130(or)X
2255(using)X
2508(code-switching)X
3141(procedures)X
3608(\(e.g.,)X
3848(those)X
4096(of)X
720 5104(ISO2022\),)N
1180(as)X
1318(well)X
1542(as)X
1680(8-bit)X
1920(or)X
2059(multiple)X
2464(octet)X
2711(character)X
3124(encodings)X
3573(MUST)X
3898(use)X
4085(an)X
720 5216(appropriate)N
1183(character)X
1561(set)X
1692(speci\256cation)X
2203(to)X
2302(be)X
2417(consistent)X
2826(with)X
3021(this)X
3184(speci\256cation.\))X
720 5440(Because)N
1074(of)X
1187(the)X
1338(restriction)X
1762(imposed)X
2121(on)X
2250(message)X
2609(bodies)X
2893(by)X
3022(RFC)X
3236(822)X
3413(and,)X
3609(in)X
3717(practice,)X
4080(by)X
720 5552(Message)N
1085(Transport)X
1488(Agents)X
1789(that)X
1963(are)X
2110(more-or-less)X
2625(compliant)X
3040(with)X
3240(RFC)X
3450(821,)X
3646(implementors)X
720 5664(should)N
1000(be)X
1115(careful)X
1407(in)X
1506(several)X
1803(ways)X
2024(regarding)X
2417(MAILASCII)X
2936(text:)X
25 p
%%Page: 25 25
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(25)X
2520(-)X
1008 688(\(1\))N
1185(Delimiters)X
1657(other)X
1921(than)X
2153(CR-LF)X
2491(pairs)X
2744(may)X
2976(be)X
3133(used)X
3375(in)X
3516(the)X
3700(local)X
1008 800(representation)N
1585(of)X
1696(a)X
1770(message)X
2127(on)X
2253(some)X
2486(systems.)X
2868(The)X
3048(persistence)X
3506(of)X
3616(CR-LF)X
1008 912(pairs)N
1219(should)X
1499(not)X
1646(be)X
1761(relied)X
2005(on.)X
1008 1136(\(2\))N
1153(Isolated)X
1491(CR)X
1652(and)X
1824(LF)X
1969(characters)X
2393(are)X
2544(not)X
2700(well)X
2899(tolerated)X
3270(in)X
3378(general;)X
3722(they)X
1008 1248(may)N
1201(be)X
1319(lost)X
1485(or)X
1592(converted)X
1998(to)X
2099(delimiters)X
2511(on)X
2633(some)X
2862(systems,)X
3216(and)X
3381(hence)X
3632(should)X
1008 1360(not)N
1155(be)X
1270(relied)X
1514(on.)X
1008 1584(\(3\))N
1176(TAB)X
1424(characters)X
1871(may)X
2093(be)X
2240(misinterpreted)X
2854(or)X
2991(may)X
3214(be)X
3362 0.2812(automatically)AX
1008 1696(converted)N
1430(to)X
1547(variable)X
1900(numbers)X
2273(of)X
2395(spaces.)X
2736(This)X
2949(is)X
3055(unavoidable)X
3568(in)X
3685(some)X
1008 1808(environments,)N
1591(notably)X
1915(those)X
2153(not)X
2312(based)X
2567(on)X
2699(the)X
2853(ASCII)X
3139(character)X
3529(set.)X
3696(Such)X
1008 1920(conversion)N
1459(is)X
1552(STRONGLY)X
2092(DISCOURAGED,)X
2831(but)X
2982(it)X
3064(may)X
3258(occur,)X
3524(and)X
3691(users)X
1008 2032(of)N
1148(MAILASCII)X
1703(format)X
2020(should)X
2336(not)X
2519(rely)X
2730(on)X
2887(the)X
3066(persistence)X
3555(of)X
3696(TAB)X
1008 2144(characters.)N
1008 2368(\(4\))N
1149(Lines)X
1392(longer)X
1667(than)X
1862(78)X
1987(characters)X
2407(may)X
2602(be)X
2722(wrapped)X
3082(or)X
3191(truncated)X
3580(in)X
3685(some)X
1008 2480(environments.)N
1626(Line)X
1873(wrapping)X
2306(and)X
2515(line)X
2730(truncation)X
3190(are)X
3377(STRONGLY)X
1008 2592(DISCOURAGED,)N
1767(but)X
1939(unavoidable)X
2459(in)X
2583(some)X
2835(cases.)X
3111(Applications)X
3653(which)X
1008 2704(depend)N
1330(on)X
1470(lines)X
1695(not)X
1861(being)X
2118(wrapped)X
2492(should)X
2791(use)X
2962(mechanisms)X
3481(other)X
3722(than)X
1008 2816(unencoded)N
1449(MAILASCII)X
1968(bodyparts)X
2371(to)X
2470(transmit)X
2810(messages.)X
1008 3040(\(5\))N
1175(Trailing)X
1517("white)X
1801(space")X
2085(characters)X
2507(\(SPACE,)X
2893(TAB,)X
3141(etc.\))X
3342(on)X
3470(a)X
3545(line)X
3722(may)X
1008 3152(be)N
1123(discarded)X
1516(by)X
1636(some)X
1863(transport)X
2229(agents,)X
2523(and)X
2686(hence)X
2935(should)X
3215(not)X
3362(be)X
3477(relied)X
3721(on.)X
720 3376(Please)N
1006(note)X
1212(that)X
1397(the)X
1555(above)X
1825(list)X
1983(is)X
2087(NOT)X
2324(a)X
2407(list)X
2566(of)X
2687(recommended)X
3274(practices)X
3658(--)X
3763(we)X
3916(do)X
4053(not)X
720 3488(recommend)N
1202(that)X
1374(MTA's)X
1683(alter)X
1882(the)X
2027(character)X
2408(of)X
2515(white)X
2756(space,)X
3021(or)X
3128(wrap)X
3347(long)X
3545(lines.)X
3802(These)X
4058(are)X
720 3600(known)N
1006(BAD)X
1233(practices)X
1602(on)X
1724(established)X
2178(networks,)X
2580(and)X
2745(implementors)X
3301(must)X
3514(guard)X
3759(against)X
4058(the)X
720 3712(bad)N
883(effects)X
1164(they)X
1354(can)X
1512(cause.)X
720 3936(See)N
885(RFC)X
1092(821,)X
1286(RFC)X
1493(822,)X
1688(and)X
1854(RFC1113)X
2254(for)X
2393(additional)X
2806(information)X
3288(about)X
3529(canonical)X
3926(SMTP)X
720 4048(formats.)N
1100(Authors)X
1447(of)X
1565(software)X
1934(which)X
2207(composes)X
2624("MAILASCII")X
3235(in)X
3347(compliance)X
3829(with)X
4037(this)X
720 4160(RFC)N
925(should)X
1205(be)X
1320(well-acquainted)X
1960(with)X
2155(SMTP)X
2429(formats.)X
720 4384(The)N
894(complete)X
1272(MAILASCII)X
1791(character)X
2169(set)X
2300(is)X
2388(listed)X
2621(below:)X
720 4608(*****)N
984(SHOULD)X
1396(WE)X
1570(KEEP)X
1834(IN)X
1959(THE)X
2170(CONTROL)X
2647(CHARS????)X
7 f
10 s
768 4816(0)N
864(nul)X
1104(16)X
1248(dle)X
1488(32)X
1632(sp)X
1872(48)X
2064(0)X
2256(64)X
2448(@)X
2640(80)X
2832(P)X
3072(96)X
3264(`)X
3456(112)X
3696(p)X
768 4912(1)N
864(soh)X
1104(17)X
1248(dc1)X
1488(33)X
1680(!)X
1872(49)X
2064(1)X
2256(65)X
2448(A)X
2640(81)X
2832(Q)X
3072(97)X
3264(a)X
3456(113)X
3696(q)X
768 5008(2)N
864(stx)X
1104(18)X
1248(dc2)X
1488(34)X
1680(")X
1872(50)X
2064(2)X
2256(66)X
2448(B)X
2640(82)X
2832(R)X
3072(98)X
3264(b)X
3456(114)X
3696(r)X
768 5104(3)N
864(etx)X
1104(19)X
1248(dc3)X
1488(35)X
1680(#)X
1872(51)X
2064(3)X
2256(67)X
2448(C)X
2640(83)X
2832(S)X
3072(99)X
3264(c)X
3456(115)X
3696(s)X
768 5200(4)N
864(eot)X
1104(20)X
1248(dc4)X
1488(36)X
1680($)X
1872(52)X
2064(4)X
2256(68)X
2448(D)X
2640(84)X
2832(T)X
3024(100)X
3264(d)X
3456(116)X
3696(t)X
768 5296(5)N
864(enq)X
1104(21)X
1248(nak)X
1488(37)X
1680(%)X
1872(53)X
2064(5)X
2256(69)X
2448(E)X
2640(85)X
2832(U)X
3024(101)X
3264(e)X
3456(117)X
3696(u)X
768 5392(6)N
864(ack)X
1104(22)X
1248(syn)X
1488(38)X
1680(&)X
1872(54)X
2064(6)X
2256(70)X
2448(F)X
2640(86)X
2832(V)X
3024(102)X
3264(f)X
3456(118)X
3696(v)X
768 5488(7)N
864(bel)X
1104(23)X
1248(etb)X
1488(39)X
1680(')X
1872(55)X
2064(7)X
2256(71)X
2448(G)X
2640(87)X
2832(W)X
3024(103)X
3264(g)X
3456(119)X
3696(w)X
26 p
%%Page: 26 26
10 s 0 xH 0 xS 7 f
1 f
12 s
2344 384(-)N
2400(26)X
2520(-)X
7 f
10 s
768 672(8)N
864(bs)X
1104(24)X
1248(can)X
1488(40)X
1680(\()X
1872(56)X
2064(8)X
2256(72)X
2448(H)X
2640(88)X
2832(X)X
3024(104)X
3264(h)X
3456(120)X
3696(x)X
768 768(9)N
864(ht)X
1104(25)X
1248(em)X
1488(41)X
1680(\))X
1872(57)X
2064(9)X
2256(73)X
2448(I)X
2640(89)X
2832(Y)X
3024(105)X
3264(i)X
3456(121)X
3696(y)X
720 864(10)N
864(nl)X
1104(26)X
1248(sub)X
1488(42)X
1680(*)X
1872(58)X
2064(:)X
2256(74)X
2448(J)X
2640(90)X
2832(Z)X
3024(106)X
3264(j)X
3456(122)X
3696(z)X
720 960(11)N
864(vt)X
1104(27)X
1248(esc)X
1488(43)X
1680(+)X
1872(59)X
2064(;)X
2256(75)X
2448(K)X
2640(91)X
2832([)X
3024(107)X
3264(k)X
3456(123)X
3696({)X
720 1056(12)N
864(np)X
1104(28)X
1248(fs)X
1488(44)X
1680(,)X
1872(60)X
2064(<)X
2256(76)X
2448(L)X
2640(92)X
2832(\\)X
3024(108)X
3264(l)X
3456(124)X
3696(|)X
720 1152(13)N
864(cr)X
1104(29)X
1248(gs)X
1488(45)X
1680(-)X
1872(61)X
2064(=)X
2256(77)X
2448(M)X
2640(93)X
2832(])X
3024(109)X
3264(m)X
3456(125)X
3696(})X
720 1248(14)N
864(so)X
1104(30)X
1248(rs)X
1488(46)X
1680(.)X
1872(62)X
2064(>)X
2256(78)X
2448(N)X
2640(94)X
2832(\303)X
3024(110)X
3264(n)X
3456(126)X
3696(\304)X
720 1344(15)N
864(si)X
1104(31)X
1248(us)X
1488(47)X
1680(/)X
1872(63)X
2064(?)X
2256(79)X
2448(O)X
2640(95)X
2832(_)X
3024(111)X
3264(o)X
3456(127)X
3648(del)X
1 f
12 s
720 1552(Beyond)N
1048(MAILASCII,)X
1596(one)X
1764(can)X
1927(imagine)X
2267(an)X
2387(enormous)X
2795(proliferation)X
3307(of)X
3417(character)X
3801(sets.)X
4023(It)X
4112(is)X
720 1664(the)N
871(opinion)X
1198(of)X
1310(the)X
1460(authors)X
1775(of)X
1887(this)X
2058(memo)X
2331(that)X
2508(a)X
2583(large)X
2808(number)X
3134(of)X
3246(character)X
3632(sets)X
3808(is)X
3904(NOT)X
4133(a)X
720 1776(good)N
967(thing.)X
1268(We)X
1457(would)X
1753(prefer)X
2039(to)X
2170(specify)X
2504(a)X
2603(single)X
2889(character)X
3299(set)X
3462(that)X
3663(can)X
3853(be)X
4000(used)X
720 1888(universally)N
1230(for)X
1424(representing)X
1982(all)X
2161(of)X
2323(the)X
2522(world's)X
2896(languages)X
3362(in)X
3518(electronic)X
3980(mail.)X
720 2000(Unfortunately,)N
1317(there)X
1543(is)X
1640(no)X
1769(clear)X
1990(choice)X
2275(for)X
2420(such)X
2630(a)X
2707(universal)X
3094(representation,)X
3698(and)X
3871(existing)X
720 2112(practice)N
1082(in)X
1212(several)X
1540(communities)X
2093(seems)X
2383(to)X
2513(point)X
2766(to)X
2896(the)X
3069(continuing)X
3536(use)X
3719(of)X
3854(multiple)X
720 2224(character)N
1101(sets)X
1272(in)X
1374(the)X
1519(near)X
1712(future.)X
2018(For)X
2179(this)X
2346(reason,)X
2649(we)X
2789(de\256ne)X
3052(names)X
3326(for)X
3466(a)X
3537(small)X
3774(number)X
4096(of)X
720 2336(character)N
1103(sets)X
1275(for)X
1415(which)X
1678(a)X
1749(strong)X
2017(consituent)X
2441(base)X
2640(exists.)X
2935(We)X
3097(recommend)X
3580(the)X
3726(use)X
3882(of)X
3990(ISO-)X
720 2448(10646)N
984(wherever)X
1366(possible.)X
720 2672(The)N
894(de\256ned)X
1201(character)X
1579(set)X
1710(names)X
1980(are:)X
720 2896(MAILASCII)N
1239(--)X
1327(as)X
1431(de\256ned)X
1738(above.)X
720 3120(ISO-10646)N
1170(--)X
1258(as)X
1362(de\256ned)X
1669(in)X
1768([REF-ISO-10646])X
720 3344(ISO-8859-X)N
1226(--)X
1317(where)X
1580("X")X
1755(is)X
1847(to)X
1950(be)X
2069(replaced,)X
2448(as)X
2556(necessary,)X
2982(for)X
3122(the)X
3268(national)X
3607(use)X
3763(variants)X
4096(of)X
720 3456(ISO-8859)N
1122([REF-ISO-8859])X
720 3680(ISO-2022)N
1122(--)X
1210(as)X
1314(de\256ned)X
1621(in)X
1720([REF-ISO-2022])X
720 3904(In)N
844(the)X
1006(opinion)X
1344(of)X
1468(the)X
1630(authors,)X
1981(this)X
2164(is)X
2272(already)X
2600(far)X
2751(more)X
2994(character)X
3393(sets)X
3582(than)X
3793(are)X
3956(really)X
720 4016(desirable,)N
1128(and)X
1303(implementors)X
1869(are)X
2023(discouraged)X
2524(from)X
2747(de\256ning)X
3098(new)X
3294(ones)X
3505(unless)X
3780(absolutely)X
720 4128(necessary.)N
720 4352(*****)N
1016(I)X
1104(AM)X
1314(SURE)X
1615(THAT)X
1927(I)X
2015(NEED)X
2327(SOME)X
2649(FLESHING)X
3169(OUT)X
3423(OF)X
3602(THE)X
3846(ABOVE)X
720 4464(DEFINITIONS)N
1340(&)X
1439(REFERENCES)X
27 p
%%Page: 27 27
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(27)X
2520(-)X
3 f
14 s
720 704(Appendix)N
1214([APP-M)X
1613(ULTIPART])X
2256(--)X
2360(The)X
2574("M)X
2742(ultipart")X
3200(Content-Type)X
1 f
12 s
720 944(In)N
832(the)X
982(case)X
1180(of)X
1292(multiple)X
1646(part)X
1828(messages,)X
2247(a)X
2322("multipart")X
2786(Content-type)X
3321(\256eld)X
3524(should)X
3812(appear)X
4101(in)X
720 1056(the)N
877(RFC)X
1097(822)X
1279(message)X
1643(header.)X
1962(The)X
2150(message)X
2514(body)X
2744(is)X
2846(then)X
3050(assumed)X
3419(to)X
3532(contain)X
3854(multiple)X
720 1168(parts)N
938(separated)X
1333(by)X
1460(encapsulation)X
2021(boundaries.)X
2523(Each)X
2748(of)X
2860(the)X
3010(parts)X
3229(is)X
3325(de\256ned,)X
3664(syntactically,)X
720 1280(as)N
847(a)X
937(complete)X
1338(RFC)X
1566(822)X
1757(message)X
2130(in)X
2252(miniature.)X
2717(That)X
2941(is,)X
3076(what)X
3310(is)X
3421(found)X
3691(between)X
4058(the)X
720 1392(encapsulation)N
1282(boundaries)X
1737(is)X
1834(a)X
1910(header)X
2200(area,)X
2418(a)X
2494(blank)X
2741(line,)X
2943(and)X
3115(a)X
3191(body)X
3416(area,)X
3634(in)X
3742(accordance)X
720 1504(with)N
920(the)X
1067(RFC)X
1277(822)X
1450(syntax)X
1730(for)X
1871(a)X
1943(message.)X
2346(However)X
2727(body)X
2948(parts)X
3164(are)X
3311(NOT)X
3536(to)X
3639(be)X
3758(interpreted)X
720 1616(as)N
844(actually)X
1194(being)X
1452(RFC)X
1677(822)X
1865(messages.)X
2320(To)X
2471(begin)X
2729(with,)X
2969(NO)X
3152(header)X
3454(\256elds)X
3707(are)X
3870(actually)X
720 1728(required)N
1068(in)X
1170(body)X
1389(parts.)X
1651(A)X
1747(body)X
1966(part)X
2143(that)X
2315(starts)X
2545(with)X
2743(a)X
2813(blank)X
3054(line,)X
3250(therefore,)X
3649(is)X
3739(a)X
3808(body)X
4026(part)X
720 1840(for)N
856(which)X
1115(all)X
1236(default)X
1528(values)X
1798(are)X
1941(to)X
2041(be)X
2157(assumed.)X
2561(In)X
2666(such)X
2867(a)X
2935(case,)X
3150(of)X
3255(course,)X
3555(the)X
3698(absence)X
4028(of)X
4133(a)X
720 1952(Content-type)N
1258(header)X
1549(\256eld)X
1754(implies)X
2072(that)X
2251(the)X
2403(encapsulation)X
2967(is)X
3065(MAILASCII)X
3594(text.)X
3821(The)X
4005(only)X
720 2064(header)N
1017(\256elds)X
1265(that)X
1450(have)X
1672(de\256ned)X
1995(meaning)X
2367(for)X
2519(body-parts)X
2971(are)X
3130(those)X
3374(the)X
3533(names)X
3820(of)X
3941(which)X
720 2176(begin)N
965(with)X
1167("Content-".)X
1661(All)X
1815(other)X
2044(header)X
2332(\256elds)X
2571(are)X
2720(to)X
2826(be)X
2947(ignored)X
3271(in)X
3376(body-parts,)X
3841(and)X
4010(may)X
720 2288(be)N
843(discarded)X
1244(by)X
1373(gateways.)X
1812(They)X
2043(are)X
2194(permitted)X
2597(to)X
2705(appear)X
2995(in)X
3103(body)X
3328(parts)X
3548(only)X
3752(for)X
3897(ease)X
4096(of)X
720 2400(conversion)N
1166(between)X
1511(messages)X
1898(and)X
2061(body)X
2277(parts.)X
720 2624(It)N
824(must)X
1056(be)X
1192(understood)X
1664(that)X
1855(body)X
2093(parts)X
2326(are)X
2490(NOT)X
2733(messages.)X
3190(For)X
3369(example,)X
3766(a)X
3855(gateway)X
720 2736(between)N
1070(Internet)X
1399(and)X
1567(X.400)X
1833(mail)X
2034(must)X
2250(be)X
2370(able)X
2560(to)X
2664(tell)X
2817(the)X
2964(difference)X
3384(between)X
3734(a)X
3806(body)X
4026(part)X
720 2848(that)N
900(consists)X
1239(of)X
1354(an)X
1480(image)X
1751(and)X
1925(a)X
2003(bodypart)X
2380(that)X
2560(consists)X
2899(of)X
3014(an)X
3140(encapsulated)X
3673(message,)X
4058(the)X
720 2960(body)N
947(of)X
1062(which)X
1332(is)X
1431(an)X
1557(image.)X
1876(In)X
1991(order)X
2229(to)X
2339(represent)X
2727(the)X
2880(latter,)X
3138(the)X
3291(body)X
3518(part)X
3703(should)X
3994(have)X
720 3072("Content-type:)N
1321(message",)X
1743(and)X
1915(its)X
2039(body)X
2264(\(after)X
2506(the)X
2657(blank)X
2904(line\))X
3114(should)X
3403(be)X
3527(the)X
3678(encapsulated)X
720 3184(message,)N
1114(with)X
1329(its)X
1464(own)X
1673("Content-type:)X
2285(image")X
2603(header)X
2903(\256eld.)X
3165(Body)X
3416(parts)X
3646(use)X
3817(the)X
3978(same)X
720 3296(syntax)N
1001(as)X
1111(messages)X
1504(because)X
1839(there)X
2062(are)X
2210(many)X
2454(legitimate)X
2871(cases)X
3104(in)X
3209(which)X
3474(a)X
3547(body)X
3770(part)X
3951(might)X
720 3408(be)N
837(converted)X
1243(into)X
1419(a)X
1488(message,)X
1864(or)X
1970(vice)X
2157(versa.)X
2434(The)X
2610(identical)X
2969(syntax)X
3245(makes)X
3516(such)X
3717(conversions)X
720 3520(easy,)N
947(but)X
1102(must)X
1321(be)X
1444(understood)X
1903(by)X
2031(implementors.)X
2641(\(For)X
2838(the)X
2988(special)X
3288(case)X
3486(in)X
3593(which)X
3860(all)X
3989(parts)X
720 3632(are)N
862(actually)X
1192(messages,)X
1603(a)X
1670("digest")X
2002(content-type)X
2508(is)X
2596(also)X
2775(de\256ned.\))X
720 3856(As)N
891(stated)X
1181(previously,)X
1676(each)X
1918(pair)X
2133(of)X
2278(consecutive)X
2798(body)X
3056(parts)X
3309(are)X
3493(separated)X
3923(by)X
4085(an)X
720 3968(encapsulation)N
1281(boundary.)X
1723(The)X
1904(encapsulation)X
2464(boundary)X
2857(MUST)X
3153(NOT)X
3380(appear)X
3667(inside)X
3927(any)X
4096(of)X
720 4080(the)N
863(encapsulated)X
1386(parts.)X
1646(Thus,)X
1887(it)X
1966(is)X
2055(crucial)X
2343(that)X
2513(the)X
2656(composing)X
3104(agent)X
3339(be)X
3456(able)X
3643(to)X
3744(choose)X
4037(and)X
720 4192(specify)N
1022(the)X
1164(boundary)X
1551(that)X
1720(will)X
1894(separate)X
2234(the)X
2376(parts.)X
720 4416(The)N
907(Content-type)X
1447(\256eld)X
1655(for)X
1804(multipart)X
2220(messages)X
2621(requires)X
2969(two)X
3151(supplementary)X
3756(\256elds.)X
4026(The)X
720 4528(\256rst)N
901(is)X
997(used)X
1205(to)X
1312(specify)X
1622(a)X
1697(version)X
2012(number)X
2338(and)X
2509(should)X
2797(be)X
2920(either)X
3172("1-S")X
3415(and)X
3585("1-P".)X
3851(The)X
4032(two)X
720 4640(versions)N
1075(have)X
1293(identical)X
1662(syntax,)X
1973(but)X
2132(the)X
2286("-P")X
2485(is)X
2585(intended)X
2953(as)X
3069(a)X
3148(hint,)X
3358(to)X
3469(receivers,)X
3877(that)X
4058(the)X
720 4752(parts)N
931(are)X
1073(intended)X
1429(to)X
1528(be)X
1643(viewed)X
1945(in)X
2044(parallel)X
2358(rather)X
2607(than)X
2797(sequentially.)X
3359(Implementations)X
4031(that)X
720 4864(can)N
898(not)X
1065(show)X
1311(the)X
1473(parts)X
1704(in)X
1823(parallel,)X
2181(or)X
2305(that)X
2494(choose)X
2805(not)X
2972(to)X
3091(do)X
3231(so,)X
3384(are)X
3547(free)X
3742(to)X
3862(treat)X
4079(all)X
720 4976(multipart)N
1129(messages)X
1547(of)X
1682(version)X
2020("1-P")X
2286(as)X
2421(if)X
2535(they)X
2756(were)X
2998(version)X
3336("1-S".)X
3649(However,)X
4079(all)X
720 5088(implementations)N
1403(should)X
1699(check)X
1964(the)X
2122(version)X
2445(number,)X
2803(to)X
2918(ensure)X
3209(graceful)X
3565(behavior)X
3942(in)X
4058(the)X
720 5200(event)N
953(that)X
1122(an)X
1237(incompatible)X
1765(future)X
2019(version)X
2326(of)X
2430(multipart)X
2808(messages)X
3195(is)X
3283(de\256ned)X
3590(later.)X
720 5424(The)N
894(second)X
1185(supplementary)X
1776(\256eld,)X
1996(which)X
2256(is)X
2345(always)X
2637(required)X
2983(for)X
3120(multipart)X
3499(messages,)X
3911(is)X
4000(used)X
720 5536(to)N
839(specify)X
1161(the)X
1323(format)X
1624(of)X
1748(the)X
1910(encapsulation)X
2484(boundary.)X
2939(The)X
3133(encapsulation)X
3706(boundary)X
4112(is)X
720 5648(de\256ned)N
1044(as)X
1165(a)X
1249(line)X
1435(consisting)X
1866(entirely)X
2202(of)X
2324(two)X
2510(hyphen)X
2835(characters)X
3268(\("-",)X
3476(decimal)X
3824(code)X
4048(45\))X
720 5760(followed)N
1097(by)X
1228(the)X
1380(second)X
1681(parameter)X
2101(of)X
2215(the)X
2367(Content-type)X
2904(header)X
3195(\256eld)X
3400(with)X
3605(any)X
3778(leading)X
4096(or)X
28 p
%%Page: 28 28
12 s 0 xH 0 xS 1 f
2344 400(-)N
2400(28)X
2520(-)X
720 688(trailing)N
1040(white)X
1295(space)X
1550(removed.)X
1977(\(DISCUSSION:)X
2665(The)X
2857(speci\256cation)X
3386(that)X
3573(white)X
3829(space)X
4085(be)X
720 800(removed)N
1094(is)X
1195(intended)X
1564(to)X
1676(eliminate)X
2073(the)X
2227(possible)X
2578(introduction)X
3085(of)X
3201(ambiguity)X
3628(caused)X
3926(by)X
4058(the)X
720 912(addition)N
1069(or)X
1182(deletion)X
1526(of)X
1639(white)X
1886(space)X
2133(by)X
2262(message)X
2622(transport)X
2998(agents.)X
3326(They)X
3558(hyphens)X
3912(are)X
4064(for)X
720 1024(rough)N
974(compatibility)X
1519(with)X
1720(the)X
1868(earlier)X
2145(RFC)X
2356(934)X
2530(method)X
2849(of)X
2958(message)X
3313(encapsulation,)X
3896(and)X
4064(for)X
720 1136(ease)N
922(of)X
1039(searching)X
1445(for)X
1594(the)X
1749(boundaries)X
2208(in)X
2320(some)X
2560(implementations.)X
3288(However,)X
3701(it)X
3792(should)X
4085(be)X
720 1248(noted)N
1006(that)X
1222(multipart)X
1647(messages)X
2081(are)X
2270(NOT)X
2538(completely)X
3038(compatible)X
3538(with)X
3780(RFC)X
4032(934)X
720 1360(encapsulations;)N
1370(in)X
1501(particular,)X
1952(they)X
2175(do)X
2328(not)X
2508(obey)X
2752(RFC)X
2990(934)X
3191(quoting)X
3542(conventions)X
4064(for)X
720 1472(embedded)N
1140(lines)X
1346(that)X
1515(begin)X
1753(with)X
1948(hyphens.\))X
720 1696(Thus,)N
960(a)X
1027(typical)X
1314(multipart)X
1692(content-type)X
2198(header)X
2479(\256eld)X
2674(might)X
2923(look)X
3118(like)X
3287(this:)X
7 f
720 1920 0.4062(Content-type:)AN
1532 0.4167(multipart;)AX
2170(1-S;)X
2460 0.3929(gc0p4Jq0M2Yt08jU534c0p)AX
1 f
720 2144(This)N
918(indicates)X
1288(that)X
1460(the)X
1605(message)X
1958(consists)X
2289(of)X
2396(several)X
2696(parts,)X
2934(each)X
3138(itself)X
3358(structured)X
3770(as)X
3877(an)X
3995(RFC)X
720 2256(822)N
909(message,)X
1304(which)X
1584(are)X
1747(intended)X
2124(to)X
2244(be)X
2380(viewed)X
2703(one-at-a-time,)X
3292(and)X
3476(that)X
3665(the)X
3827(parts)X
4058(are)X
720 2368(separated)N
1108(by)X
1228(the)X
1370(line)X
720 2592(--gc0p4Jq0M2Yt08jU534c0p)N
720 2816(The)N
901(encapsulation)X
1462(boundaries)X
1915(must)X
2133(not)X
2287(appear)X
2575(within)X
2853(the)X
3003(encapsulations,)X
3626(and)X
3797(should)X
4085(be)X
720 2928(no)N
840(longer)X
1110(than)X
1300(70)X
1420(characters,)X
1859(not)X
2006(counting)X
2367(the)X
2509(two)X
2677(leading)X
2985(hyphens.)X
720 3152(The)N
921(encapsulation)X
1502(boundary)X
1916(following)X
2341(the)X
2510(last)X
2695(body-part)X
3120(should)X
3427(be)X
3569(a)X
3663(distinguished)X
720 3264(delimiter)N
1120(that)X
1316(indicates)X
1710(that)X
1906(no)X
2053(further)X
2366(body-parts)X
2828(will)X
3029(follow.)X
3378(Such)X
3620(a)X
3713(delimiter)X
4112(is)X
720 3376(identical)N
1082(to)X
1186(the)X
1333(previous)X
1693(delimiters,)X
2132(with)X
2332(the)X
2479(addition)X
2824(of)X
2933(two)X
3106(more)X
3333(hyphens)X
3682(at)X
3781(the)X
3928(end)X
4096(of)X
720 3488(the)N
862(line:)X
720 3712(--gc0p4Jq0M2Yt08jU534c0p--)N
720 3936(It)N
832(should)X
1141(be)X
1285(noted)X
1552(that)X
1750(there)X
1996(is)X
2113(room)X
2370(for)X
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31 p
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- Postscript, try #2 Nathaniel Borenstein