On Thu, May 29, 2014 at 6:03 AM, Joel Uckelman <uckelman@nomic.net> wrote:
Thus spake Mark Sapiro:
If all you are saying is that a lot of posts are From: non-members because they come via the phpbb forum, that shouldn't matter. Mailman should still check the From: domain for DMARC and apply the dmarc_moderation_action as required regardless of list membership.
This is exactly what I'm saying. Many messages posted to the list via the bridge have From: headers with non-list-member addresses in them. All messages posted to the list via the bridge have the Sender: address set to a special address which *is* a list subscriber, which is why (I believe) Mailman does not reject such messages as originating from non-subscribers.
Can you pastebin a full set of headers, distinctly obfuscating people's names, etc.?
-Jim P.