On May 2, 2014, at 3:28 PM, Terry Zink <[email protected]> wrote:
>>> if this maillist here would change i bet it would be more >>> understandable on what not to do > >> The advice hasn't changed: don't set a DMARC policy other than p=none on >> domains >> used by human users. We know that some large domains have disregarded that >> advice, but it doesn't make it any less correct. > > I understand this position because it's a position I take many times here at > work. However, as has been pointed out to me, just because I am correct > doesn't mean that I am right, nor that I don't have a problem to solve. > > Given that large email providers like Yahoo and AOL do publish p=reject > records, how is the rest of the email community going to deal mailing lists > and other legitimate cases that fail DMARC? It's not enough to say "Yahoo and > AOL shouldn't be doing it." That ship has sailed. The question now is what > can we do to improve user experience? Several answers have been proposed: > > 1. Do nothing and let domains that publish p=reject live with the consequences > 2. Don't permit domains with p=reject onto mailing lists > 3. Mailing lists should reformat the message to prevent DMARC failures > 4. Email receivers should be selective about how they enforce p=reject - send > it to Junk or even skip enforcing it from known good emailing lists > 5. Extend DMARC so that it supports mailing lists > 6. Something else? > > These each have their pros and cons but it seems to me that working to > support p=reject with mailing lists is a net benefit to everyone. If it has no negative impact, sure. If it does have negative impact for elamil users at domains other than those publishing p=reject - *especially* negative impact that will last well beyond the expected lifetime of DMARC as a useful protocol - expect to get quite a lot of pushback on claims that it's a net benefit. If it "weakens" DMARC significantly expect to get pushback about that, too. Cheers, Steve _______________________________________________ dmarc-discuss mailing list [email protected] http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
