I have seen assertions about the diffetential impact of Tree Walk, but no specifics. I don't know how I missed that information when it was shared
So initially, I am asking for a compsrison between my results and the data used to justify the asserted consensus. Was 2% previuosly observed and judged acceptable? Were the previous error rates judged acceptable because they were computed using a different denominator definition? With our present design, the necessary response to these errors is for the domain owner to remove intermediate DMARC policies. I know that I proposed other mitigations which were rejected as unnecessary. Given my results, I think they are necessary. Doug On Fri, Oct 6, 2023, 8:58 PM Seth Blank <s...@valimail.com> wrote: > Doug, are you suggesting we relitigate consensus on this matter? That is a > high bar we do not wish to undertake lightly. > > Seth, as Chair > > On Fri, Oct 6, 2023 at 19:49 Douglas Foster < > dougfoster.emailstanda...@gmail.com> wrote: > >> I have only recently implemented all of the tools needed to be able to >> test PSL vs Tree Walk. >> >> I looked at messages which had passed reputation filtering and content >> filtering, to isolate messages where DMARC alone could be determinative. >> Within that group, 75% of the messages did not need tree walk, either >> because of strict alignment or no alignment. >> >> For the subset where relaxed alignment would be applicable, about 11% >> had no policy, and 1.6% had false failures because the domain owner had >> published strict alignment. >> >> For the subset where relaxed alignment was both specified and applicable, >> the Tree Walk caused about 2% to switch from PASS to FAIL because the >> domains being compared were incorrectly viewed as different organizations. >> >> Is this consistent with the previous research into this issue? >> >> Doug Foster >> _______________________________________________ >> dmarc mailing list >> dmarc@ietf.org >> https://www.ietf.org/mailman/listinfo/dmarc >> >
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