Once upon a time, Bruno Wolff III <bruno@xxxxxxxx> said: > On Sat, Jul 02, 2016 at 00:48:14 +0200, > Michael Scherer <misc@xxxxxxxx> 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_rep@xxxxxxxxx, mailto:dmarc_agg@xxxxxxxxxxxxxxxxxxx\; " 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 <linux@xxxxxxxxxxx> -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://lists.fedoraproject.org/admin/lists/devel@xxxxxxxxxxxxxxxxxxxxxxx