The most obvious shortcuts are that names must match on the right-most two labels before the org domain is found, and must match on the entire org domain once it is known.
A high percentage of tree walks can be eliminated with these two tests. On Sun, Aug 7, 2022, 2:56 PM John Levine <jo...@taugh.com> wrote: > It appears that Scott Kitterman <skl...@kitterman.com> said: > > > > > >On August 6, 2022 11:10:28 AM UTC, Alessandro Vesely <ves...@tana.it> > wrote: > >>On Fri 05/Aug/2022 17:58:48 +0200 Scott Kitterman wrote: > >>> I don't think it changes anything technically, but I think it goes > >>> some way to address Ale's concerns about clarity. > >> > >> > >>Some way it goes. > > > >In that case, does anyone have a problem with the change. I'm happy to > support it as a step towards consensus on the > >wording. > > I don't think it makes it worse. > > I'm thinking we might rewrite the intro to the tree walk by listing the > situations where > you need to do one rather than the ones where you don't, e.g.: > > - looking for policy domain for the From domain unless it says psd=n > > - if SPF policy says relaxed alignment and From and SPF are different, > finding org domains > > - if DKIM policy says relaxed alignment and From and DKIM are different, > finding org domains > > I would not list any shortcuts other than maybe that you can remember and > reuse > queries you've already made. > > R's, > John > > _______________________________________________ > dmarc mailing list > dmarc@ietf.org > https://www.ietf.org/mailman/listinfo/dmarc >
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