Once upon a time, Bruno Wolff III <br...@wolff.to> said: > On Sat, Jul 02, 2016 at 00:48:14 +0200, > Michael Scherer <m...@zarb.org> wrote: > >So that's rather fast to explain. Libero.it use this SPF record: > > Isn't SPF tied to the envelope sender address and not the From: > header?
Yes. Like I said earlier, the problem is DMARC, which is based on the header From: address. libero.it has the following DMARC policy record: "v=DMARC1\; p=quarantine\; rua= mailto:dmarc_agg_...@libero.it, mailto:dmarc_...@auth.returnpath.net\; " So, their policy says that non-conforming messages should be quarantined by receivers of those messages. Mailing lists that don't rewrite the header From: address will cause messages from domains with DMARC policies of quarantine or reject to be a problem for mail servers that apply DMARC policies. -- Chris Adams <li...@cmadams.net> -- devel mailing list devel@lists.fedoraproject.org https://lists.fedoraproject.org/admin/lists/devel@lists.fedoraproject.org