I've just run into yet another weird condition that mailman struggles with.
This may sound silly, but.. I renamed a mailing list today.
However, if you strictly follow the List-ID RFC (at least, as I read it), even though it's been renamed, the List-ID shouldn't change. Even though opentransportdev@lists.apple.com has become macprogdev@lists.apple.com, the List-ID should still be opentransportdev.lists.apple.com, since that's how it was defined in the global name space.
Now, in practice, I think it's important for the list-ID to track the list name, but to be strictly compliant for those who want it that way, it seems there ought to be a way to explicitly set List-ID, which Mailman just can't do right now.
This, obviously, is a showstopper for 2.1.... (snork).