On Sat, Dec 4, 2021 at 11:28 PM Scott Kitterman <[email protected]> wrote:
> I think the addition of the PSD flag to support organizational domain > determination is a good change. I have some quibbles about the exact > definition though: > > > psd: A flag indicating whether the domain is a PSD. (plain-text; > > OPTIONAL; default is 'n'). Possible values are: > > > > y: Domains on the PSL that publish DMARC policy records > SHOULD > > include this tag with a value of 'y' to indicate that the > > domain is a PSD. This information will be used during > policy > > discovery to determine how to apply any DMARC policy > records > > that are discovered during the tree walk. > > > > n: The default, indicating that the DMARC policy record is > > published for a domain that is not a PSD. > > Why does this need a value at all? Why can't the flag just be psd? > > [snip] > > All that's needed is to strike "with a value of 'y'" from the second > sentence. > > I think this is simpler and clearer. > > I don't disagree that it's simpler and clearer. However, expressing it as psd=(y|n) was chosen to be consistent with the expression of every other tag currently defined for DMARC records, all of which "follow the extensible "tag-value" syntax for DNS-based key records defined in DKIM" as declared in section 5.3, General Record Format. This doesn't mean we can't break new ground here, but doing so would require rewriting the beginning of section 5.3, as well. -- *Todd Herr * | Technical Director, Standards and Ecosystem *e:* [email protected] *m:* 703.220.4153 This email and all data transmitted with it contains confidential and/or proprietary information intended solely for the use of individual(s) authorized to receive it. If you are not an intended and authorized recipient you are hereby notified of any use, disclosure, copying or distribution of the information included in this transmission is prohibited and may be unlawful. Please immediately notify the sender by replying to this email and then delete it from your system.
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