New domains sending spam

Chris Barber chris at
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:


>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
  > Scott

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