Re: [ietf-smtp] Endless debate on IP literals
Keith Moore <moore@network-heretics.com> Thu, 02 January 2020 19:10 UTC
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From: Keith Moore <moore@network-heretics.com>
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Date: Thu, 02 Jan 2020 14:10:48 -0500
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Subject: Re: [ietf-smtp] Endless debate on IP literals
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On 1/2/20 1:07 PM, Dave Crocker wrote: > > The target documents would be: > > 1) Astreamlined rfc5321bis yes. But I don't think this is the place to impose policy, including policy about whether domain literals are permitted in EHLO/HELO. I think this document should be targeted toward implementors of the protocol engines, with policy a separate layer (and probably in a separate document). That way, implementors of the protocol engines have one clear and stable reference to work from. Policy recommendations are less likely to be stable, as conditions will continue to change. Putting policy recommendations in a separate document lets those recommendations evolve without affecting the base SMTP protocol specification. So the SMTP protocol could permit IP address literals in EHLO/HELO as a matter of syntax, whereas policy could restrict that further. > > 2) A document specifying requirements for Exterior MTAs, which > would include mandating rfc5321bis, starttls, ... I suspect the document needs to specify requirements for relaying across domain boundaries rather than talking about particular kinds of MTAs. I'm not sure that there is, in practice, a clean separation between Exterior MTAs and Interior MTAs, such that only Exterior MTAs are involved in relaying across domain boundaries. Keith
- [ietf-smtp] Possible cont4ibution to moving forwa… John C Klensin
- Re: [ietf-smtp] Possible cont4ibution to moving f… Dave Crocker
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… John C Klensin
- Re: [ietf-smtp] Possible cont4ibution to moving f… John C Klensin
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Viktor Dukhovni
- Re: [ietf-smtp] Possible cont4ibution to moving f… Viktor Dukhovni
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… John C Klensin
- Re: [ietf-smtp] Possible cont4ibution to moving f… Viktor Dukhovni
- Re: [ietf-smtp] Possible cont4ibution to moving f… Jeremy Harris
- Re: [ietf-smtp] Possible cont4ibution to moving f… Alessandro Vesely
- Re: [ietf-smtp] Possible contiibution to moving f… John C Klensin
- Re: [ietf-smtp] Possible contiibution to moving f… Viktor Dukhovni
- Re: [ietf-smtp] Possible contiibution to moving f… John C Klensin
- Re: [ietf-smtp] Possible contribution to moving f… Viktor Dukhovni
- Re: [ietf-smtp] Possible contribution to moving f… John C Klensin
- Re: [ietf-smtp] Possible contribution to moving f… S Moonesamy
- Re: [ietf-smtp] Possible cont4ibution to moving f… Barry Leiba
- Re: [ietf-smtp] Possible cont4ibution to moving f… Dave Crocker
- Re: [ietf-smtp] Possible cont4ibution to moving f… John Levine
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… John Levine
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… John R Levine
- Re: [ietf-smtp] Possible cont4ibution to moving f… Laura Atkins
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Laura Atkins
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Laura Atkins
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Endless debate on IP literals John Levine
- Re: [ietf-smtp] Possible cont4ibution to moving f… Hector Santos
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Endless debate on IP literals Dave Crocker
- [ietf-smtp] It's not about IP-Literals, its about… Hector Santos
- Re: [ietf-smtp] Endless debate on IP literals John C Klensin
- Re: [ietf-smtp] Endless debate on IP literals John R Levine
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- Re: [ietf-smtp] Endless debate on IP literals Dave Crocker
- Re: [ietf-smtp] Possible cont4ibution to moving f… Jeremy Harris
- Re: [ietf-smtp] Endless debate on IP literals John R Levine
- Re: [ietf-smtp] Endless debate on IP literals Dave Crocker
- Re: [ietf-smtp] Endless debate on IP literals Dave Crocker
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- Re: [ietf-smtp] Endless debate on IP literals John R Levine
- Re: [ietf-smtp] Possible cont4ibution to moving f… John Levine
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible contribution to moving f… Viktor Dukhovni
- Re: [ietf-smtp] Possible contribution to moving f… Keith Moore
- Re: [ietf-smtp] SMTP client certs John Levine
- Re: [ietf-smtp] Endless debate on IP literals John Levine
- Re: [ietf-smtp] Possible contribution to moving f… Richard Clayton
- Re: [ietf-smtp] Possible contribution to moving f… John Levine
- Re: [ietf-smtp] Possible contribution to moving f… Viktor Dukhovni
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- Re: [ietf-smtp] Possible contribution to moving f… Keith Moore
- Re: [ietf-smtp] Endless debate on IP literals John R Levine
- Re: [ietf-smtp] Endless debate on IP literals Viktor Dukhovni
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- Re: [ietf-smtp] Endless debate on IP literals John Levine
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- Re: [ietf-smtp] Possible contribution to moving f… Dave Crocker
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- Re: [ietf-smtp] Endless debate on IP literals John Levine
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- Re: [ietf-smtp] Endless debate on IP literals Viktor Dukhovni
- Re: [ietf-smtp] Endless debate on IP literals Alessandro Vesely
- Re: [ietf-smtp] Possible contribution to moving f… Hector Santos
- Re: [ietf-smtp] Possible contribution to moving f… Hector Santos
- Re: [ietf-smtp] Endless debate on IP literals Dave Crocker
- Re: [ietf-smtp] Possible cont4ibution to moving f… Hector Santos
- Re: [ietf-smtp] Endless debate on IP literals Hector Santos
- Re: [ietf-smtp] Endless debate on IP literals John R Levine
- Re: [ietf-smtp] Possible contribution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Hector Santos
- Re: [ietf-smtp] Possible cont4ibution to moving f… Dave Crocker
- Re: [ietf-smtp] Endless debate on IP literals Dave Crocker
- Re: [ietf-smtp] Possible contribution to moving f… John C Klensin
- Re: [ietf-smtp] Possible contribution to moving f… Dave Crocker
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Dave Crocker
- Re: [ietf-smtp] Possible cont4ibution to moving f… Arnt Gulbrandsen
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- Re: [ietf-smtp] Possible contribution to moving f… Keith Moore
- Re: [ietf-smtp] Possible contribution to moving f… Dave Crocker
- Re: [ietf-smtp] Possible contribution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Dave Crocker
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Dave Crocker
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Possible contribution to moving f… John C Klensin
- Re: [ietf-smtp] Possible contribution to moving f… Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… John Levine
- Re: [ietf-smtp] Possible cont4ibution to moving f… John Levine
- Re: [ietf-smtp] Possible contribution to moving f… Dave Crocker
- Re: [ietf-smtp] Endless debate on IP literals Ned Freed
- Re: [ietf-smtp] Possible cont4ibution to moving f… Dave Crocker
- Re: [ietf-smtp] Endless debate on IP literals Ned Freed
- Re: [ietf-smtp] Endless debate on IP literals Dave Crocker
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- [ietf-smtp] lounging around Dave Crocker
- Re: [ietf-smtp] Endless debate on IP literals Keith Moore
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] Endless debate on IP literals John R Levine
- Re: [ietf-smtp] Possible cont4ibution to moving f… Keith Moore
- Re: [ietf-smtp] lounging around John Levine
- Re: [ietf-smtp] Endless debate on submission auth… John Levine
- Re: [ietf-smtp] lounging around John Levine
- Re: [ietf-smtp] lounging around Keith Moore
- Re: [ietf-smtp] lounging around Dave Crocker