I found this, so it seems that there is no single way to change the site admin contact address, as messages seems to be associate with the list admin, according to the %(owneraddr)s in the bounce.txt
[2] https://mail.python.org/pipermail/mailman-users/2012-September/074141.html Henrik Rasmussen Fra: Henrik Rasmussen Sendt: 28. november 2014 12:55 Til: mailman-users@python.org Emne: Custom contact address, not site admin Some standard mails from Mailman, like "bounce action notice", urges the user to contact the Mailman site-list address*). While I still want system mails, meant for the site admin, to go to the site admin address, I would like to customize the contact address displayed in mails and on the web GUI, to show our helpdesk e-mail address instead. Normally I would edit the file /usr/lib/mailman/messages/uk/LC_MESSAGES/mailman.po and run /usr/lib/mailman/bin/msgfmt.py /usr/lib/mailman/messages/da/LC_MESSAGES/mailman.po, but not all messages can be customized this way. What is the best way to customize the site admin contact address in each e-mail and web-gui page, to display our helpdesk contact address? *) Example of standard mail from Mailman: "Questions? Contact the Mailman site administrator at mail...@list.example.com<mailto:mail...@list.example.com>." Henrik Rasmussen ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org