On Sunday, February 07, 2016 08:25:13 PM John Levine wrote: > In article <2049568.4HsipfqAXp@kitterma-e6430> you write: > >To start with, you'll have to explain why receivers should trust a sender > >to not lie about where they got the mail from in an ARC header field if > >they don't already trust the sender. > > If you're suggesting that ARC is only useful when you already trust > the forwarding party, and if you trust the forwarding party, why do > you need ARC, yeah, that's been pointed out before. > > The best explanation I've seen was from someone at Google who said > that they often see well behaved lists suddenly start to send spam > when a spambot happens to send mail that fakes a subscriber's return > address. ARC would make it somewhat easier to tell when that happens.
OK. Specifically in a DMARC context (this being the DMARC list), I don't see that it's particularly related to DMARC and solving the DMARC mailing list problem. For the reasons you correctly state have been gone over before. Scott K _______________________________________________ dmarc-discuss mailing list dmarc-discuss@dmarc.org 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)
