Re: [dmarc-ietf] The description of psd=n

[Scott Kitterman <[e-mail]>]

On March 5, 2024 8:10:46 PM UTC, Todd Herr <todd.herr=[e-mail]> wrote:
>On Tue, Mar 5, 2024 at 1:30 PM Scott Kitterman <[e-mail]> wrote:
>
>>
>>
>> On March 5, 2024 2:47:47 PM UTC, Todd Herr <todd.herr=
>> [e-mail]> wrote:
>> >On Tue, Mar 5, 2024 at 6:12 AM Alessandro Vesely <[e-mail]> wrote:
>> >
>> >> Hi,
>> >>
>> >> Section 5.3, in the format description of psd:
>> >>
>> >>        n:  The DMARC policy record is published for a PSD, but it is the
>> >>           Organizational Domain for itself and its subdomain.  There is
>> >>           no need to put psd=n in a DMARC record, except in the very
>> >>           unusual case of a parent PSD publishing a DMARC record without
>> >>           the requisite psd=y tag.
>> >>
>> >> Perhaps a "not" is missing between "is" and "published"?  I'd just say
>> >> the
>> >> domain is not a PSD /and/ it is the Organizational Domain for itself and
>> >> its subdomain.
>> >>
>> >>
>> >You may be correct in your assertion here; I'll wait for others to weigh
>> in.
>> >
>> >In the meantime, Issue 126 has been opened to track this.
>> >
>>
>> I think it's missing a not, but is overwise fine.
>>
>>
>John Levine commented directly on issue 126
><https://github.com/ietf-wg-dmarc/draft-ietf-dmarc-dmarcbis/issues/126>,
>indicating that he believes the text should read (emphasis added by me):
>
>       n:  The DMARC policy record is published for a PSD, but it is NOT the
>          Organizational Domain for itself and its subdomain.  There is
>          no need to put psd=n in a DMARC record, except in the very
>          unusual case of a parent PSD publishing a DMARC record without
>          the requisite psd=y tag.
>
>I think this is the correct place to put the 'not', as it's consistent with
>the second sentence here, as well as this text from the following sections:
>
>4.8 Organizational Domain Discovery - "If a valid DMARC record contains the
>psd= tag set to 'n' (psd=n), this is the Organizational Domain, and the
>selection process is complete."
>
>11.8 Determination of Organizational Domain for Relaxed Alignment -  "If a
>PSD domain publishes a DMARC record without the appropriate psd=y tag,
>organizational domain owners can add psd=n to their organizational domain's
>DMARC record so that the PSD record will not be incorrectly evaluated to be
>the organizational domain."
>
I agree.

Scott K