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Re: [dmarc-ietf] 5.5.4. Publish a DMARC Policy for the Author Domain - dmarcbis-06

John Levine <johnl@taugh.com> Wed, 06 April 2022 01:34 UTC

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Date: 5 Apr 2022 21:33:58 -0400
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From: "John Levine" <johnl@taugh.com>
To: dmarc@ietf.org
Cc: sklist@kitterman.com
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Subject: Re: [dmarc-ietf] 5.5.4. Publish a DMARC Policy for the Author Domain - dmarcbis-06
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It appears that Scott Kitterman  <sklist@kitterman.com> said:
>I'd suggest we change the first point in the note for 4.8.
>
>   *  The RFC5322.From domain and the RFC5321.MailFrom domain (if SPF
>      authenticated), and/or the DKIM d= domain (if present and
>      authenticated) are all the same  and that domain has a DMARC record.
>      In this case, this common domain is treated as the Organizational
>      Domain.

>Adding "and that domain has a DMARC record" as a condition for not doing the 
>tree walk should be sufficient.

That should work.

>For the second point, I think that's accurate, but I don't really think we 
>need to standardize the optimization.  If I'm using an async DNS resolver, I 
>would implement firing off all the necessary queries and then evaluating them 
>once I have the answer. 

Good point.  "Never mind."

R's,
John

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