On Tuesday, April 28, 2015 6:11 AM [GMT+1=CET], Stephen J. Turnbull wrote: > J. Gomez writes: > > > That would force DMARC-compliant Mediators to reject (or accept > > but not resend) incoming email from p=reject domains, > > irrespective of whether such mail passes or not the initial > > incoming DMARC checks. > > Yahoo! and AOL are bigger than MLMs. MLMs would bear the brunt of > user rage at that treatment.
So do you think it is proper for an email actor to knowingly inject DMARC-rejectable messages into the public email infrastructure? Because that is exactly what mailing lists are doing when: (a) they check DMARC for incoming email (therefore, they are DMARC-aware), and (b) they then reinject into the public email infrastructure messages whose original Author's domain has declared p=reject. That case I think looks like utter disregard for a standard they know about (DMARC), in the name of convenience. If a mailing list was DMARC-agnostic, i.e. it didn't care about DMARC and didn't check it for incoming email, I would have no problem with such mailing list also disregarding DMARC when reinjecting messages. However, if a mailing list cared about DMARC when receiving, I think it SHOULD also care for DMARC when sending (and therefore NEVER reinject DMARC-rejectable messages into the public email infrastructure). > I'm quite sure that the market test will give the answer "knuckle > under", regardless of whether the majority of AOL and Yahoo! users > would prefer to keep the current MLM features or not. They don't pay > for AOL/Yahoo!/GMail/Hotmail MUA dev costs, so those providers have > very little incentive to respond positively to their requests to > support MLM features better. And, in fact, they WONTFIX them > regularly (dunno about Hotmail, but GMail is as bad as the others in > this respect). Who knows? Perhaps Yahoo and AOL would suffer "user diaspora" if they kept publishing p=reject and MLMs decided to be DMARC-compliant when reinjecting messages. Regards, J.Gomez _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
