Public bug reported: This is about 2.1.22 in Ubuntu Yakkety. mailman is configured with German (de) as default language and the templates for German and English are generated.
For some reason, the notifications and web pages in German are all encoded in latin-1, while the declared encoding both in mail notification as well as in web pages served is utf-8. This result in broken display of umlauts until one manually changes the encoding. See https://lists.uferwerk.org/cgi-bin/mailman/listinfo/ I have tried to manually enforce UTF-8 by adding add_language('en', 'English (USA)', 'utf-8', 'ltr') add_language('de', 'Deutsch', 'utf-8', 'ltr') We see this misbehaviour since we migrated mailman from one server running Ubuntu 14.4 with mailman 1:2.1.14-3ubuntu0.4 to another server running 16.10 with mailman 1:2.1.22-1ubuntu0.1 On the old server, it worked just fine without any additional tweaking and on the new server, not tweaking seems to change anything at all. In the mailman error log I see recurring error messages of the sort: Apr 24 15:10:19 2017 (898) list: mitglieder: can't decode "Liste f�r Mitglieder der Uferwerk e.G." as utf-8 Apr 24 15:10:19 2017 (901) list: mitglieder: can't decode "Liste f�r Mitglieder der Uferwerk e.G." as utf-8 Apr 24 15:10:20 2017 (901) list: mitglieder: can't decode "Liste f�r Mitglieder der Uferwerk e.G." as utf-8 I am not sure why these descriptions were suddenly in latin-1 but I manually converted them to utf-8 now, restarted mailman, and the situation remains unchanged: Both the overview page and the mail notifications are in latin-1 while the headers declare that they are in utf-8, which results in broken rendering of the text ** Affects: mailman Importance: Undecided Status: New ** Affects: mailman (Ubuntu) Importance: Undecided Status: New ** Also affects: mailman (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1685946 Title: Mismatch between declared and actual encoding in mail notifications and web pages To manage notifications about this bug go to: https://bugs.launchpad.net/mailman/+bug/1685946/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs