Today a message sneaked through with no classification. Looking in the procmail log showed that sb_filter.py had returned an exit status 11. The offending message is plain-text and has nothing wrong with it that I can spot, and when sb_filter.py is run via the command line it gets an X-Spambayes-Classification: spam; 0.92 quite correctly. A grep around in the Spambayes code and in the main Python 2.3 code doesn't turn up any explicit sys.exit(11) and attempts to get a full trace out of sb_filter while it's running from procmail have failed. There's another message which also fails classification via procmail with exit status of -6, but correctly gets a ham 0.6 on the commandline. Need help from someone with a bigger bag of clues I think... Mike -- Mike Causer Email - mailto:mikec@mikecauser.com GPG KeyID 1C2DDA07 WWW - http://www.mikecauser.com Flood the fen again! - Wicken Fen enlargement - http://www.wicken.org.uk