It is the actual from address, not the mail from (envelope).
That’s the difference between DKIM & SPF... On May 15, 2014, at 10:21 AM, Brian O'Neill <[email protected]> wrote: > IIRC, the issue is not with the From: and Reply-To: headers, but the envelope > sender (MAIL FROM in the SMTP chatter). > > Some systems, especially mailing lists, when forwarding on behalf of the > original sender, don't reset the envelope sender to the local domain, and use > the original sender's email address. You then bump into problems if the > receiving host is checking SPF and DKIM (DMARC is basically both), and the > original sender's domain has those set and have strict checking. > > We ran into this when a person had their email forwarded to a yahoo account > from an Exchange 2003 server. Exchange 2003 doesn't change the envelope > sender on forwarding, but I understand that 2007 and later change the > envelope sender to be the forwarding account. > > I haven't looked any deeper yet at my mailman stuff, as fortunately I don't > have any yahoo recipients or any other domain that is doing DMARC yet. > > On 5/15/2014 10:15 AM, Edward Ned Harvey (bblisa4) wrote: >> Before anybody says "Don't use yahoo," this is both a reasonable thing for >> yahoo to do, and something that others can and should and will (like it or >> not) be adopting more in the future. >> >> Apparently yahoo recently set their DMARC policy to reject, which means >> yahoo users can't participate in mailing lists such as this one. >> >> Anybody here using yahoo? Try posting to the list, and prove or deny, that >> you can't? >> >> Here is the official mailman page on the subject: >> http://wiki.list.org/display/DEV/DMARC >> >> It seems, the solution is to enable "from_is_list" so the message will >> actually send "From: Edward Ned Harvey via The List" and "Reply-To: Edward >> Ned Harvey <[email protected]>" >> >> _______________________________________________ >> bblisa mailing list >> [email protected] >> http://www.bblisa.org/mailman/listinfo/bblisa >> > > _______________________________________________ > bblisa mailing list > [email protected] > http://www.bblisa.org/mailman/listinfo/bblisa _______________________________________________ bblisa mailing list [email protected] http://www.bblisa.org/mailman/listinfo/bblisa
