RE: Question about "spoofing" emails.

From: MrC (no email)
Date: Thu Mar 01 2007 - 13:11:59 EST

  • Next message: Charles Marcus: "Re: Postfix rejecting NDRs with 501 5.5.4 Bad message size syntax ?"

    > I have one question for you.
    >
    > How do you do to avoid this kind of thing?
    >
    > 220 -Empresa de Servicios - XXXXXXX
    > helo mundo
    > 250 SERVER02.xxxxxxxx.com.ar
    > mail from: <>
    > 250 Ok
    > rcpt to: <>
    > 250 Ok
    > data
    > 354 End data with <CR><LF>.<CR><LF>
    > FROM: John User <>
    > TO: <>
    > SUBJECT: Nada
    >
    > Muerte!
    > .
    > 250 Ok: queued as 972C55865D
    >
    > I think that it's too difficult to get rid of this type of
    > mails, filtering may reject valid emails...
    >
    > I hear any suggestions!

    What specifically is "this kind of thing" ? The "mundo" HELO parameter?
    The "" MAIL FROM envelope?

    Please be more specific about what you are trying to reject.

    MrC


  • Next message: Charles Marcus: "Re: Postfix rejecting NDRs with 501 5.5.4 Bad message size syntax ?"





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