On 2016-11-03 00:33, Ralph Seichter wrote: > On 03.11.16 00:23, Ryan Schmidt wrote: > >> The new mailing list server uses an updated version of mailman that is >> supposed to handle this problem without the need to remove the email >> footers. > > If the sender signs message bodies and mailman modifies the bodies, DKIM > signatures should, by design, become invalid. Like I mentioned before, the > footers only repeat information given in the message headers anyway, so > I can't see why we would not simply get rid of them.
To be more specific, we will make use of the mailman option dmarc_moderation_action set to "Munge From". For sender domains with a strict DMARC policy (p=reject or p=quarantine), the From address will be rewritten to the list address and the original sender will be in Reply-To. This will avoid bounces when the receiving mail server follows DMARC policies. To avoid invalidating DKIM at all, we would indeed need to remove the footers. Rainer _______________________________________________ macports-users mailing list firstname.lastname@example.org https://lists.macosforge.org/mailman/listinfo/macports-users