Jim Popovitch writes: > TBH, I'm not sure what else there is to look for. :-) GMail, every so > often, is telling my Mailman that it needs to Auth in order to reflect > From:gmail to other gmail customers. It's like DMARC without > following the DMARC standard (GMail has a p=none policy).
Is it possible that those users are using their GMail address from a non-Google host? That would explain the intermittent nature of the challenge -- it doesn't have the GMail DKIM signature that identifies GMail-from-GMail messages. And it would also explain why it "looks like" DMARC, since DKIM is one of the underlying protocols used to implement DMARC. ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org
