NewsForge: Defeat Spam with SpamBayes

“Spam email is the plague of the 21st century; SpamBayes is its
cure. This client-side application analyzes all incoming email
messages and automatically sorts out those that are unwanted.

“SpamBayes digests the contents of email messages and counts how
often certain words–e.g. Viagra–occur in spam (bad) or ham (good)
messages. Based on these word patterns, it calculates an overall
score that rates a message as spam, ham, or unknown. You can
manually classify unknown mail as spam or ham and SpamBayes will
learn accordingly…”