Is this the "official" version of kam.cf? http://www.pccc.com/downloads/SpamAssassin/contrib/
The file is huge, and consists of ad-hoc rules against spammy keywords. We use a completely different approach, resulting in few general rules and a short whitelist. We hardly see any kam-esque spam, but we are wise enough to verify. Is there an open corpus of kam-spam that we can process?
