educating rDNS violators

SMiller_at_unimin.com
Date: 08/18/04

  • Next message: Josh Tolley: "Re: Securing web site with redundancy ?" 
    To: security-basics@securityfocus.com
Date: Wed, 18 Aug 2004 17:49:22 -0400

    Our mail administration group recently implemented blocking of all incoming
    messages from domains that cannot be resolved via reverseDNS, for purposes
    of spam prevention. Of course, there are quite a number of legitimate
    business contacts who do not have rDNS properly configured. Assuming that
    the rDNS criterion remains, the question becomes one of who will notify
    and/or educate the sender(s) about this issue. The only time-efficient way
    that I can think of to do this would be to have instructions and references
    in the body of the bounce message itself. Anyone tried that? Results?
    Other suggestions? Thanks in advance.

    Scott

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  • Next message: Josh Tolley: "Re: Securing web site with redundancy ?"