Re: [dane] email canonicalization for SMIMEA owner names
Mark Andrews <marka@isc.org> Fri, 12 December 2014 01:00 UTC
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From: Mark Andrews <marka@isc.org>
References: <95826148-4F06-4942-87A4-2F6601BA0F90@nist.gov> <20141211221456.GI3448@localhost> <20141211235519.GO25666@mournblade.imrryr.org> <20141212000953.B0FE5254EAE8@rock.dv.isc.org> <20141212003130.GQ25666@mournblade.imrryr.org> <20141212004131.09FDB254F4F4@rock.dv.isc.org> <20141212005550.GR25666@mournblade.imrryr.org>
In-reply-to: Your message of "Fri, 12 Dec 2014 00:55:50 -0000." <20141212005550.GR25666@mournblade.imrryr.org>
Date: Fri, 12 Dec 2014 12:00:07 +1100
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Archived-At: http://mailarchive.ietf.org/arch/msg/dane/c1CFHBWAkkAADn_1THV20d9e2aI
Subject: Re: [dane] email canonicalization for SMIMEA owner names
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In message <20141212005550.GR25666@mournblade.imrryr.org>, Viktor Dukhovni writ es: > On Fri, Dec 12, 2014 at 11:41:30AM +1100, Mark Andrews wrote: > > > > If we're really going to do this as a direct query to the remote > > > domain (and not a DNSSEC lookup), perhaps the right application > > > protocol is some sort of minimal SMTP over SSL on a port indicated > > > by the SRV record: > > > > > > <tcp connect> > > > C/S: <TLS handshake> > > > C: SMIMEA "Frank.Jr."@example.com > > > S: 250-3 1 1 <blob1> > > > S: 250 3 1 2 <blob2> > > > <TCP disconnect> > > > > But not port 25. That is blocked too often. > > Absolutely, this would be an additional service on some other port, > indicated via SRV records, and authenticated via DANE TLSA records. > > The downside of something other than HTTPS or DNS, is that while > less likely to be blocked for anti-spam reasons, this is likely to > be inaccessible to MUAs inside various firewalled environments. > > Perhaps a sufficiently light-weight http encapsulation is right > after all, and MTA authors might be able to implement just enough > HTTPS to still support this as an MTA feature. > > In Postfix this would be a separate program that runs out of > "master.cf", but uses the Postfix table facilities to get the data > out of any supported datastore (including LDAP!). > > This however takes far away from any similarity to the SMIMEA draft > as it is today. Is it really time to throw it all away and start > again? Yes. It's just a pity it has taken so long for other to realise this. > -- > Viktor. > > _______________________________________________ > dane mailing list > dane@ietf.org > https://www.ietf.org/mailman/listinfo/dane -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@isc.org
- Re: [dane] email canonicalization for SMIMEA owne… Nico Williams
- [dane] email canonicalization for SMIMEA owner na… Rose, Scott W.
- Re: [dane] email canonicalization for SMIMEA owne… Ian Fette (イアンフェッティ)
- Re: [dane] email canonicalization for SMIMEA owne… Viktor Dukhovni
- Re: [dane] email canonicalization for SMIMEA owne… Nico Williams
- Re: [dane] email canonicalization for SMIMEA owne… Christian Rößner
- Re: [dane] email canonicalization for SMIMEA owne… John Levine
- Re: [dane] email canonicalization for SMIMEA owne… John Levine
- Re: [dane] email canonicalization for SMIMEA owne… Viktor Dukhovni
- Re: [dane] email canonicalization for SMIMEA owne… Mark Andrews
- Re: [dane] email canonicalization for SMIMEA owne… Viktor Dukhovni
- Re: [dane] email canonicalization for SMIMEA owne… Mark Andrews
- Re: [dane] email canonicalization for SMIMEA owne… Viktor Dukhovni
- Re: [dane] email canonicalization for SMIMEA owne… Mark Andrews
- Re: [dane] email canonicalization for SMIMEA owne… Ian Fette (イアンフェッティ)
- Re: [dane] email canonicalization for SMIMEA owne… Viktor Dukhovni
- Re: [dane] email canonicalization for SMIMEA owne… Paul Wouters
- Re: [dane] email canonicalization for SMIMEA owne… Paul Wouters
- Re: [dane] email canonicalization for SMIMEA owne… Nico Williams
- Re: [dane] email canonicalization for SMIMEA owne… Nico Williams
- Re: [dane] email canonicalization for SMIMEA owne… Nico Williams
- Re: [dane] email canonicalization for SMIMEA owne… John Levine
- Re: [dane] email canonicalization for SMIMEA owne… Mark Andrews
- Re: [dane] email canonicalization for SMIMEA owne… Nico Williams
- Re: [dane] email canonicalization for SMIMEA owne… Ben Laurie
- Re: [dane] email canonicalization for SMIMEA owne… Jakob Schlyter
- Re: [dane] email canonicalization for SMIMEA owne… Paul Wouters
- Re: [dane] email canonicalization for SMIMEA owne… Alexey Melnikov
- Re: [dane] email canonicalization for SMIMEA owne… Alexey Melnikov
- Re: [dane] email canonicalization for SMIMEA owne… Paul Wouters
- Re: [dane] email canonicalization for SMIMEA owne… Nico Williams
- Re: [dane] email canonicalization for SMIMEA owne… Ben Laurie
- Re: [dane] email canonicalization for SMIMEA owne… Alexey Melnikov
- Re: [dane] email canonicalization for SMIMEA owne… Viktor Dukhovni
- Re: [dane] email canonicalization for SMIMEA owne… John Levine
- Re: [dane] email canonicalization for SMIMEA owne… Nico Williams
- Re: [dane] email canonicalization for SMIMEA owne… James Cloos
- Re: [dane] email canonicalization for SMIMEA owne… Viktor Dukhovni
- Re: [dane] email canonicalization for SMIMEA owne… John Levine
- Re: [dane] email canonicalization for SMIMEA owne… Viktor Dukhovni
- Re: [dane] email canonicalization for SMIMEA owne… James Cloos
- Re: [dane] email canonicalization for SMIMEA owne… John Levine
- Re: [dane] email canonicalization for SMIMEA owne… Viktor Dukhovni