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Identify users sending emails (Was: We need a solution for!)

Discussion in 'E-mail Discussion' started by fatboyslim, May 17, 2004.

  1. fatboyslim

    fatboyslim Registered

    Apr 7, 2004
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    Santa Fe, Argentina
    Ok, the problem with "" has been solved, but what's happend if the user sending mail from your script add the "rigth FROM" header in the mail() function (PHP)?

    Let's explain me a little more:

    If I (a user) use the mail() function like this:, Exim will reject these email..

    but if i use:, Exim will relay the email.. thats ok.. (and Exim log the use for the stats and BW usage)


    What's happen if i use this ?

    Exim will count a usage for "" and not the real..

    How can i detect this type of abuse?

    Thanks and sorry about my english please!
  2. chirpy

    chirpy Well-Known Member

    Jun 15, 2002
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    Go on, have a guess
    Are you sure that it is logged against the wrong user? Have to verified that? It's quite likely that the stats logging does not use the From field.

    In fact, I just checked and it works just fine - I sent an email changing the From address and it still correctly logged the actual sender in the eximstats MySQL database.
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