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Article:
  Defending Your Site Against Spam
Subject:   How do you know you were not forwarding SPAM?
Date:   2003-06-30 09:38:16
From:   anonymous2
You say that you bounced the email immediately under the spam attach, but were they all sent with real return addresses? I have received quite a bit of spam that came from someone sending me an "undeliverable message" bounce when I never sent the message in the first place. Some spammer(s) had put my address in the respond to and then bounced the message off of some unsuspecting third party. How do you deal with this as the potential bouncer?
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  • How do you know you were not forwarding SPAM?
    2003-06-30 23:30:32  drunelson [View]

    I believe that the return addresses were all for
    the same address, which was invalid. As a result, I received a lot of "double bounces".
    Sneaking a tiny blurb in a bounce message is
    possible, but most MTA's mangle them so much
    that most technical people I know can't interpret them :-)

    Thanks for brining up that point though, it is interesting to consider.