The list appears to have settings enabled: - modify the subject by adding [Nut-upsuser] - add a footer
I believe these are controlled by the list administrator, in the same way as reply_goes_to_list. Both of these are, in the eyes of DKIM, attacks on the integrity of the message. I believe that when mailman is attacking the message :-) due to configuration, and the address in From publishes a DMARC policy, then it changes the From: and inserts a Reply-To back to the sender. Or rather that there is a setting "when breaking the message and From has a DMARC policy, forge from". Here are the headers of a message you recently sent to the list (and not also to me, so I'm seeing the list headers): From: Charles Lepple via Nut-upsuser <[email protected]> Subject: Re: [Nut-upsuser] Keeping the traffis on or off the list ? To: Jim Klimov <[email protected]> Cc: Charles Lepple <[email protected]>, nut-upsuser Mailing List <[email protected]> Date: Sat, 17 Feb 2024 11:09:20 -0500 (43 minutes, 27 seconds ago) Reply-To: nut-upsuser Mailing List <[email protected]> As you can see the From: is forged. _______________________________________________ Nut-upsuser mailing list [email protected] https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsuser
