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273701Re: Spam Backscatter

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  • Ansgar Wiechers
    Feb 1, 2011
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      On 2011-02-02 Simon wrote:
      > We are receiving what appears to be backscatter from spam that is
      > using a valid address in the Return Path. I have included an example
      > of the header info from one of the spam messages below. The ?From? and
      > ?To? addresses just seem to be random and are not related to us in any
      > way. Does anyone know to block this sort of backscatter?

      I wrote a backscatter filter based on smtpprox to handle this.


      WFM, but AFAIK not tested outside low traffic environments.

      Ansgar Wiechers
      "Abstractions save us time working, but they don't save us time learning."
      --Joel Spolsky
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