Oh, follow-up (and this, too, is for Devuan's listadmins' attention in particular):
> There is an (IMO unhappy but least-bad-available) kludge setting in > Mailman's admin WebUI to make the MLM compensate for DMARC brain-damage: > You go to Privacy Options, Sender Filters, item 'Action to take when > anyone posts to the list from a domain with a DMARC Reject/Quarantine > Policy' aka dmarc_moderation_action. Change the radio button from > Accept (default) to Munge from. I am specifically _not not not_ recommending the similar-looking setting 'Replace the From: header address with the list's posting address to mitigate issues stemming from the original From: domain's DMARC or similar policies' aka from_is_list on General Options. My understanding is that opting for _that_ version of the kludge unconditionally applies it to all postings whether they are from DMARC-encumbered domains or not. My recommendations: On Privacy options, Sender filters: dmarc_moderation_action: Munge from dmarc_quarantine_moderation_action): Yes dmarc_none_moderation_action: no On General options: change nothing. _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng