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Blocking Specific Email

Discussion in 'E-mail Discussions' started by bmckain, Jun 19, 2007.

  1. bmckain

    bmckain Registered

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    I have been trying to tighten the security on my email and have done fairly well but I am still seeing a couple of issues that really bother me.

    1. Return Path

    This is spam where the return path is listed as a valid account on our server.

    2. Envelope To

    This is spam directed to an email address and enveloped to a list of other addresses, some valid and some not.

    3. From

    This is spam where the sender address is a valid user so blocking or blacklisting the from email would block emails from valid users.


    Is there any good way of doing this? I have all the standard commands set from the WHM editor but I can’t seem to find these specifics listed.
     
  2. chirpy

    chirpy Well-Known Member

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    There's next to nothing that you can do about spoofing email headers at present. Domainkeys is the most promising solution, but until it ends up in the SMTP/MTA RFC's there's not much you can do about the bounces from spoofed headers or the spoofed email themselves. SPF tried, but the takeup as been (relatively) miniscule because it failed to deliver what it originally promised.
     
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