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SpamAssassin : A SPAM filter

How does SpamAssassin work?

It scans through all incoming e-mail and determines if a particular e-mail resembles SPAM. If an e-mail resembles SPAM, it tags the e-mail in these ways:

• The e-mail's Subject is prepended with the string "**SPAM(<score>)**"
  
• The following e-mail headers are added :
  

  
  	X-Spam-Status: Yes, score=nn, required=nn
                 tests=
                 version=3.0.4
          X-Spam-Flag: YES
          X-Spam-Level: *******************************
  	
  	

  where the number of '*' indicates how severe it is.
  
• If an e-mail is determined not to be SPAM, these e-mail headers are added:

  
  	X-Spam-Status: No, score=nn, required=nn
          	tests=
          	version=3.0.4
          X-Spam-Level: 
          	with no '*' characters
  	
  	

• SpamAssassin does not alter the body of an e-mail.
• SpamAssassin does not delete or block any e-mail or in any way prevent them from being delivered.
• SpamAssassin does not do a perfect job. This means that some non-SPAM e-mail will occasionally be tagged as SPAM, and sometimes SPAM e-mail will get through.

SpamAssassin is highly configurable. More information can be found with:

• man spamassassin
• >perldoc spamassassin
• >perldoc Mail::SpamAssassin::Conf
• http://www.spamassassin.org
• FAQs

Please contact help@astro if you have any questions concerning SpamAssassin or require assistance in customizing it.