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Blocking subdomain email via DNS

Discussion in 'Bind / DNS / Nameserver Issues' started by gbh1935, Sep 17, 2008.

  1. gbh1935

    gbh1935 Active Member

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    I get a ton of spammers trying to dump email to my server via random names against subdomains of a domain. ie bob@subdomain.domain.com

    Is there a way at the dns level to kill off any and all subdomain MX traffic?
     
  2. Miss Jacky

    Miss Jacky Well-Known Member

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    Hmm, maybe make bogus MX records for each subdomain, like

    subdomain.domain.tld MX 0 imnotamailserver.tld.

    If that makes any sense.
     
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