[MM3-users] Re: Mailman core: basic internationalization howto?

I made it work, sort of, after creating the directory structure templates/site/no and put the templates inside the 'no' folder. However, I can't make it work without setting the language manually for each list first. New lists are created with English as their language, breaking the creation of welcome mail. Also, I can not add members to the lists from Postorius. I want all new lists to use utf-8 without having to use mailman shell. How can it be done?