Re: [dmarc-ietf] ARC draft issues/clarifications

"Murray S. Kucherawy" <superuser@gmail.com> Sun, 15 January 2017 00:31 UTC

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From: "Murray S. Kucherawy" <superuser@gmail.com>
Date: Sat, 14 Jan 2017 16:31:26 -0800
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To: John Levine <johnl@taugh.com>
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Cc: "dmarc@ietf.org" <dmarc@ietf.org>, Gene Shuman <gene@valimail.com>
Subject: Re: [dmarc-ietf] ARC draft issues/clarifications
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On Thu, Jan 12, 2017 at 1:34 PM, John Levine <johnl@taugh.com> wrote:

> In article <CANtLugMzj+cfSjmC9XHt0X3f5f_epjfCVw+5bEjYxLXpdo5Z_g@mail.
> gmail.com> you write:
> >I'm currently working on a test suite for ARC, and have run into a few
> >areas in the draft that could use some clarification, mostly with regards
> >to section 5.2.1, which seems like it needs a non-trivial update.  I've
> run
> >into the following issues:
> >
> >- Can messages with violations in their ARC sets(duplicate/malformed i=
> >values, etc), still be considered valid, assuming they pass the chain
> >validation algorithm under the given ordering?
> >- Similarly, can messages with completely duplicate ARC sets still be
> >considered valid?
>
> My advice is to fail them all, since that's the way to get the message
> back to MTA authors to fix buggy ARC code.
> [...]


+1.

-MSK