The sender is a spammer. I very much doubt he'll either mend his ways or his software.
By the way, I'd much like to see a hook allowing mailman to call an external spam filter when a message arrives from an unknown sender.
See the FAQ for example: http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq04.023.htp
-- Tokio Kikuchi, tkikuchi@ is.kochi-u.ac.jp http://weather.is.kochi-u.ac.jp/
------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/