Re: [arch-d] deprecating Postel's principle- considered harmful

S Moonesamy <sm+ietf@elandsys.com> Thu, 09 May 2019 08:18 UTC

Message-Id: <6.2.5.6.2.20190509002546.1016db88@elandnews.com>
Date: Thu, 09 May 2019 01:14:49 -0700
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>, architecture-discuss@ietf.org
From: S Moonesamy <sm+ietf@elandsys.com>
Cc: Barry Leiba <barryleiba@computer.org>, ietf@ietf.org
In-Reply-To: <53a9c16c-163c-a18a-371a-f8aa8697af15@cs.tcd.ie>
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Subject: Re: [arch-d] deprecating Postel's principle- considered harmful
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Hi Stephen,

[Cc trimmed]

At 01:38 PM 07-05-2019, Stephen Farrell wrote:
>Question for ya on that Barry - do you think that MUA
>and mail server implementers would actually bounce
>messages as strictly as Martin's document might call
>for? I'm not one of those implementers, so I don't know,
>but I'd not be surprised to hear that in fact they'd
>continue to prioritise mail delivery (for non spam)
>over protocol purity.

My guess is that the implementer would continue to prioritise mail 
delivery by default.  There is some guidance in RFC 1123 (Section 
1.2.2) about the general rule.  I'd say that the rule is about 
handling error conditions gracefully while not replicating the error 
throughout the network.

Regards,
S. Moonesamy

Re: [arch-d] deprecating Postel's principle- cons… BRUNGARD, DEBORAH A
Re: [arch-d] deprecating Postel's principle- cons… Barry Leiba
Re: [arch-d] deprecating Postel's principle- cons… Stephen Farrell
Re: [arch-d] deprecating Postel's principle- cons… Brian E Carpenter
Re: [arch-d] deprecating Postel's principle- cons… Andrew G. Malis
Re: [arch-d] deprecating Postel's principle- cons… Barry Leiba
Re: [arch-d] deprecating Postel's principle- cons… Warren Kumari
Re: [arch-d] deprecating Postel's principle- cons… Tony Li
Re: [arch-d] deprecating Postel's principle- cons… Stephen Farrell
Re: [arch-d] deprecating Postel's principle- cons… Adam Roach
Re: [arch-d] deprecating Postel's principle- cons… Salz, Rich
Re: [arch-d] deprecating Postel's principle- cons… Joel M. Halpern
Re: [arch-d] deprecating Postel's principle- cons… Adam Roach
Re: [arch-d] [IAB] deprecating Postel's principle… Christian Huitema
Re: [arch-d] [IAB] deprecating Postel's principle… Stephen Farrell
Re: [arch-d] deprecating Postel's principle- cons… Matthew Kerwin
Re: [arch-d] deprecating Postel's principle- cons… Rich Kulawiec
Re: [arch-d] deprecating Postel's principle- cons… Henning Schulzrinne
Re: [arch-d] [IAB] deprecating Postel's principle… Henning Schulzrinne
Re: [arch-d] deprecating Postel's principle- cons… Christian Huitema
Re: [arch-d] deprecating Postel's principle- cons… Brian E Carpenter
Re: [arch-d] deprecating Postel's principle- cons… Henning Schulzrinne
Re: [arch-d] deprecating Postel's principle- cons… Mark Andrews
Re: [arch-d] deprecating Postel's principle- cons… Paul Wouters
Re: [arch-d] [IAB] deprecating Postel's principle… Randy Bush
Re: [arch-d] deprecating Postel's principle- cons… Joe Touch
Re: [arch-d] deprecating Postel's principle- cons… Carsten Bormann
Re: [arch-d] deprecating Postel's principle- cons… Jari Arkko
Re: [arch-d] deprecating Postel's principle- cons… John C Klensin
Re: [arch-d] deprecating Postel's principle- cons… Henning Schulzrinne
Re: [arch-d] deprecating Postel's principle- cons… Phillip Hallam-Baker
Re: [arch-d] deprecating Postel's principle- cons… Bless, Roland (TM)
Re: [arch-d] deprecating Postel's principle- cons… Joe Touch
Re: [arch-d] deprecating Postel's principle- cons… Henry S. Thompson
Re: [arch-d] deprecating Postel's principle- cons… Henning Schulzrinne
Re: [arch-d] deprecating Postel's principle- cons… Henning Schulzrinne
Re: [arch-d] deprecating Postel's principle- cons… S Moonesamy
Re: [arch-d] deprecating Postel's principle- cons… Eliot Lear
Re: [arch-d] deprecating Postel's principle- cons… Carsten Bormann
Re: [arch-d] deprecating Postel's principle- cons… Eliot Lear
Re: [arch-d] deprecating Postel's principle- cons… Bob Briscoe
Re: [arch-d] deprecating Postel's principle- cons… Henning Schulzrinne
Re: [arch-d] deprecating Postel's principle- cons… Henry S. Thompson