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The Next Step in Fighting Spam: Greylisting

Posted by michael on from the ideas-are-a-dime-a-dozen dept.

Evan Harris writes "I've just published a paper on a new and unique spam blocking method called "Greylisting". The best thing about it other than achieving better than 97% effectiveness in blocking spam, is that it practically eliminates the main problem of other solutions: the false-positive. There's even source code for an example implementation written as a perl filter for sendmail, along with instructions for installing, so you can get up and running quickly."

9 of 481 comments (clear)

  1. Re:your first mistake by Schnapple · · Score: 5, Funny
    You have just rendered Greylisting pretty useless by making it open source.
    You're assuming the spammers can read source code.
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    Schnapple

  2. Re:your first mistake by L.+VeGas · · Score: 4, Funny

    That's just my take on the issue, maybe I'm wrong but I doubt it.

    That's what I like to see. Someone with strong opinions. Or maybe not.

    --
    Best Windows Freeware
  3. RFC 3514 by pizen · · Score: 4, Funny

    How about in the spirit of RFC 3514 (the evil bit) we create a spam header in email. Spam will set this header so we can easily filter it out.

  4. Waiting for Article Title by notque · · Score: 4, Funny

    The Next Step in Fighting Spam: Death Penalty

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    http://use.perl.org
  5. The real solution by mrseigen · · Score: 4, Funny

    We should grab some of the guys who get 1000+ spams per day, point them to the physical location of the spammers, and then step back. I can guarantee you that vigilante justice is entirely appropriate here, considering we want the gov to step back from the 'net instead of entering new "secret arrests of spammers"(?) laws.

  6. Re:Sarxpam by selfabuse · · Score: 3, Funny

    find the people who sent it, and send them a message saying "I'm Ron Jeremy... I don't think you *want* me to have another 3 inches"

  7. Re:your first mistake by Ross+C.+Brackett · · Score: 4, Funny

    You're assuming the spammers can read.

  8. Re:your first mistake by autopr0n · · Score: 4, Funny

    You're assuming the spammers can read source code.

    Who do you think writes spamming software?

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    autopr0n is like, down and stuff.
  9. EOL SMTP by satyap · · Score: 3, Funny

    Or we could all abandon SMTP and move to my jabber-based email "solution".

    What? Where is it? Oh, I'm still working on it. You can send and receive, but buddy lists are not implemented yet.