Ralph Seichter via dovecot skrev den 2019-06-01 14:24:
Is there something I can do on my end to ensure that replies get sent to the list only? If not, Is this something the list owners can set for me?
you can always make work arounds, just like mailman try to be helpfull to users and admins, the only way to do it right is to not break dkim, its sad that nearly all mailman admins try any workarounds of this to keep breaking it :(
if mailman would do better please implement openarc on the mailman SERVER before handled to mailman, then its fixed
on the recipient SERVER its important latest opendmarc from trunk is used so it test openarc seal'ing, so it never btw rejects mail even for maillist posters that have dmarc policy of reject
stop mangling maillists to death