In Office 365 it would. Others' implementations may vary. -- Terry
-----Original Message----- From: dmarc-discuss [mailto:dmarc-discuss-boun...@dmarc.org] On Behalf Of A. Schulze via dmarc-discuss Sent: Friday, May 13, 2016 1:23 PM To: dmarc-discuss@dmarc.org Subject: Re: [dmarc-discuss] DMARC and null path Am 09.05.2016 um 22:42 schrieb Franck Martin via dmarc-discuss: > RFC7489.MAILFROM is RFC5321.MailFrom if it is not empty, otherwise it is > postmaster@<RFC5321.Helo> Hello Franck, does that mean a message could pass DMARC if - it's send from a host sending "mail.example.com" as HELO parameter - have an empty envelope sender - have a header "From: MAILER-DAEMON <mailer-dea...@mail.example.com>" - is not DKIM signed at all ??? Andreas _______________________________________________ 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)