 jeremy hylton wrote then i tried a dirt simple tokenizer for the headers that tokenize the words in the header and emitted like this s s hdr word that worked too well the received and date headers helped the classifier discover that most of my spam is old and most of my ham is new heh i hit the same problem but the other way round when i first started playing with this i d collected spam for a week or two then mixed it up with randomly selected messages from my mail boxes course it instantly picked up on received NUMBER as a non ham curse that too smart for me software still it s probably a good thing to note in the documentation about the software when collecting spam ham make _sure_ you try and collect from the same source anthony anthony baxter anthony interlink com au it s never too late to have a happy childhood 