I co-administer with @Trijnstel the stewards-l mailing list, which is set to reject all nonmember's postings and hold incoming messages from ^.*@wikimedia.org users. Of those posting from that domain, some regular posters were added to the nonmembers list and their addresses set to accept immediately without further actions.
Despite that, mailman3 seems to ignore this and keeps holding for moderation mail sent from @wikimedia users whose addresses are explicitly configured to be accepted in the nonmembers' list.
Is this a mailman bug or a misconfiguration from our side?
Thanks.