However, if your site administrator has enabled its support, you can set your list up to support any of about two dozen languages, such as German, Italian, Japanese, or Spanish. Your list members can then choose any of your supported languages as their preferred language for interacting with the list. Such things as their member options page will be displayed in this language. Each mailing list also has its own preferred language which is the language the list supports if no other language context is known.
These variables control the language settings for your mailing list:
subject_prefix contains non-ASCII
characters, the prefix will always be encoded according to the
relevant standards. However, if your subject prefix contains only
ASCII characters, you may want to set this option to Never
to disable prefix encoding. This can make the subject headers
slightly more readable for users with mail readers that don't
properly handle non-ASCII encodings.
Note however, that if your mailing list receives both encoded and unencoded subject headers, you might want to choose As needed. Using this setting, Mailman will not encode ASCII prefixes when the rest of the header contains only ASCII characters, but if the original header contains non-ASCII characters, it will encode the prefix. This avoids an ambiguity in the standards which could cause some mail readers to display extra, or missing spaces between the prefix and the original header.