Sorry about the rather broad distribution. A few people have inquired recently about this code.
I *think* I successfully migrated my cron/gate_news changes to the mailman 2.2 branch. The modified mailman2.2 branch is available here:
bzr+ssh://smontanaro@bazaar.launchpad.net/%7Esmontanaro/mailman/SpamBayes/(I have no idea how these strange URLs work. You'll probably need to snip out the "smontanaro@" bit. What you might replace it with I have no clue or if the protocol needs to be changed.)
The cron/gate_news file has been changed to run incoming Usenet messages through the SpamBayes classifier. There is also a spambayes.ini file to use as a template. This simple change worked wonders on the python-list@python.org mailing list. I still see complaints about spam from time-to-time. I think, "what spam?". When I investigate I always find it's a user on the Usenet side of the bridge who is complaining.
There is still absolutely no training support. You will have to wrangle that somehow else. Either the mboxtrain or tte scripts which come with the SpamBayes distribution should do the trick if you have some collected ham and spam. If you need some help, contact me offline or send email to spambayes@python.org.
Cheers,
-- Skip Montanaro - skip@pobox.com - http://www.smontanaro.net/ "XML sucks, dictionaries rock" - Dave Beazley