anthonyinterlinkcomau anthony baxter jeremy hylton wrote tried dirt simple tokenizer headers tokenize words header emitted like hdr word worked well received date headers helped classifier discover spam old ham new heh hit problem way round first started playing id collected spam week two mixed randomly selected messages mail boxes course instantly picked received2001 nonham curse toosmartforme software still probably good thing note documentation software collecting spamham make _sure_ try collect source anthony anthony baxter never late happy childhood sat 07 sep 2002 135037 1000 spambayes understanding high false negative rate