I finally upgraded mailman to the latest stable version here.
I'm running a couple of mailing lists (one for the Michigan Division of the USFA and one for my club) and recently reconfigured them to strip any non-text MIME types (both lists allow posting only from one address, but with all the from address spoofing email viruses it was only a matter of time until one finally managed to post itself to the list -- one did, and so it was time for a lock down).
I originally had problems because I didn't add multipart/related to the allowed mime types, and html email from OE was being silently discarded, instead of being automatically converted into plain text (or instead of letting the plain text multipart/alternative section through). What with things already being slightly broken, I took the opportunity to upgrade to the latest stable version.
A simple:
./configure --prefix=/Users/mailman \
--with-python=/usr/local/bin/python \
--with-mail-gid=1 --with-cgi-gid=70 \
--with-mailhost=geeklair.net \
--with-urlhost=geeklair.net
was all it took. (I had put off upgrading because I didn't remember which gid's were correct, but these are the ones that work with Mac OS X 10.2, gid 1 = daemon and gid 70 = www).
