challenge-response
Challenge/Response still exists, and it's still a problem
Challenge/Response is a specific type of email filter. If you use a Challenge/Response (C/R) spam filter to protect yourself from spam, here...
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challenge-response
challenge-response
History Repeating: Challenge/Response again?!
At least one mailing list operator on Mailop is reporting that he's receiving mail from something called BitBounce. It sounds like some ...
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Blast from the past: Challenge/Response Filtering?
A few weeks ago, somebody on the Mailop list asked about an email they received. Turns out, it was a Challenge/Response spam filter. You kno...
challenge-response
SpamArrest Loses in Court
Here's my take on it, and here's John Levine's take . I really like John's breakdown of the clickwrap license issue and deta...
challenge-response
Blah on Challenge/Response
Richi Jennings breaks it down: Peter Brockman, and open questions on C/R success rate determination methodology. As Richi puts it, "...
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Opinions on Challenge/Response?
Q: Is challenge/response a well respected spam prevention/spam blocking methodology? A: NO . Heh.
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How to deal with Challenge/Response?
Over here , I help answer a question about Challenge/Response filters, in MediaPost's EmailInsider newsletter. I was already a reader ...