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Two points: 1. What makes you claim blacklists are the "most-effective" form of filtering? My understanding is that other techniques like Bayesian filtering ar
by cletus 16y ago
Two points:
1. What makes you claim blacklists are the "most-effective" form of filtering? My understanding is that other techniques like Bayesian filtering are.
Background: http://www.paulgraham.com/falsepositives.html http://www.paulgraham.com/falsepositives.html
2. Saying that it only comes from a few sources is dangerous thinking. This type of thinking was used by politicians to get a ban on adult services from Craigslist ("get rid of it there and it goes away!").
- fanf2 16y agoA good email blacklist (such as the Spamhaus Zen list) will detect 90% of spam with no false positives and negligible load. There is a lot of evidence that there are not many botnets and each one has little diversity of control. This observation does not generalize to other kinds of spam such as 419s.