And what is very strange as well is that is says both:
debug: bayes: Not available for scanning, only 0 spam(s) in Bayes DB < 200
Maarten, it appears that you trained your bayes database with a corpus of email and told it that it was all "ham", that it, not spam.
Assuming you have two mbox files, one full of spam, one full of ham, did you start out training it like so?:
sa-learn --spam --mbox spamfile
sa-learn --ham --mbox hamfile
Best regards, Mojo -- Morris Jones Monrovia, CA http://www.whiteoaks.com Old Town Astronomers: http://www.otastro.org