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» Combining SMTP and HTTP tar Pits to Proactively Reduce Spam
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CNIS
2006
13 years 11 months ago
Dynamically blocking access to web pages for spammers' harvesters
Almost all current anti spam measures are reactive, filtering being the most common. But to react means always to be one step behind. Reaction requires to predict the next action ...
Tobias Eggendorfer, Jörg Keller