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Re: [dmarc-ietf] NXDOMAIN

"Murray S. Kucherawy" <superuser@gmail.com> Tue, 06 April 2021 01:01 UTC

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From: "Murray S. Kucherawy" <superuser@gmail.com>
Date: Mon, 05 Apr 2021 18:00:43 -0700
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To: Todd Herr <todd.herr=40valimail.com@dmarc.ietf.org>
Cc: IETF DMARC WG <dmarc@ietf.org>
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Subject: Re: [dmarc-ietf] NXDOMAIN
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On Mon, Apr 5, 2021 at 3:08 PM Todd Herr <todd.herr=
40valimail.com@dmarc.ietf.org> wrote:

> I did not require an MX record, per se; the requirement was that there be
> either an MX record or, failing that, an A/AAAA record.
>

Given that this is what RFC 5321 Section 5.1 prescribes in terms of
answering the question "Where should I try to connect to deliver this?",
that seems like a sane thing to use as a test.

-MSK

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