Sven Anderson writes:
IIRC, if the user sets their subscription to "no-dupes", that user's address will be removed from the addressee list, as well as from the list of addresses that Mailman actually distributes to the post to.
I just checked this to be sure, but only the latter is true. The user's address stays in the To/Cc header.
Hm. I know both are true for my lists (Mailman 2.1.5).
And anyway, that's not what I want. I want an option so that the addressee list is cleaned up, no matter if the users wants duplicates or not.
Ah. You don't care what your users want. I can't argue with that.