Geoff Shang writes:
The reason why I'm asking is that I'm in need of some Mm3 features and was wondering if it was ready for limited deployment, and if so, what those limits currently are.
The list server is in beta, when combined with Postfix as the MTA. Interfaces to other MTAs have not yet been created yet.
The archiver and the web interface are at best early beta, but there are running prototypes. You can substitute a 3rd party service like mail-archive.com if that is satisfactory.
The User model remains somewhat incomplete. By that I mean that we don't have a successful integration of Mailman users with "enterprise" user databases. The linkage seems a bit ad hoc in the prototypes that GSoC students are working on.
There are no deployments I know of, although Barry may. (I'm leaving out people who are playing with betas; by "deployment" I mean "supporting real work".) The GSoC mentors and students are discussing setting one up that we can experiment either.
HTH
Steve