celi--- via Mailman-users writes:
Everything almost OK, except from the fact that none of mailman's core email messages are being translated, even though mailman.po shows the right messages.
Did you restart mailman? Have you changed the default language in mailman.cfg?
I don't know how Debian may have altered the configuration mechanism, but they usually do. It's possible they've changed file locations or added "conf.d" capabilities or something like that to make their automated management tools work.
Also, strange things happen to these .po files. The web interface is almost perfect, but some messages (just some) are not correct - although the corresponding django.po appears to be OK. It´s the case below: the pair msgid/msgstr seems to be OK, but this particular sentence is not being translated.
Since this is Django, have you run "mailmanweb compilemessages"?