Hi. I have an (as yet unreleased) module called Mail::ListDetector, which takes a Mail::Internet object, and attempts to tell you if the message involved was posted to a mailing list, and if so, attempts to get some details about that list. I need testers - in particular, see if it builds and passes tests for you, and throw lots of messages at the sample script and see if you can get it to be inaccurate for any of them. If you can, please send me the message in question. (if you don't want to give out the content, just headers should do). Currently it should know about majordomo, smartlist, ezmlm, and mailman, although the majordomo and smartlist guessers are a bit experimental. It's at: http://www.etla.org/Mail-ListDetector-0.05.tar.gz Michael