why challenge/response email systems are bad

I always advise people against using C/R systems since they don't help solve the spam problem and often just annoy people. I've been too lazy to write something up with some good information. Thanks to Karsten Self, I don't have to. He has an excellent article Challenge-Response Anti-Spam Systems Considered Harmful

This entry was written by Chris Scott, posted on March 31, 2004 at 5:22 pm, filed under Spam. Bookmark the permalink. Follow any comments here with the RSS feed for this post. Post a comment or leave a trackback: Trackback URL.

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