New domains sending spam

Chris Barber chris at techquility.net
Thu Apr 14 18:56:36 IST 2011


I believe there is a spamassassin ruleset that detects this kind of thing. It's called day old bread. I think it's in any modern version of spamassassin already, but you can increase the score of this rule in order to make sure you block messages matching it:

http://wiki.apache.org/spamassassin/Rules/DNS_FROM_DOB

-Chris


>I've been seeing a lot of new domains pop up and immediately start sending spam.
>
>In our environment we will almost never get an email from someone on a brand new domain.  
>
>Is there a way to not accept an email from a domain that is say less than 30 days old?
>
>Environment ->MailScanner, Spamassassin, Postfix
>
 >Thanks!
  > Scott



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