Postfix/Spam_handling

From http://archives.neohapsis.com/archives/postfix/2010-02/0075.html

• Stop 70% or more of all spam with

  smtpd_recipient_restrictions =
     permit_mynetworks
     reject_unauth_destination
     reject_rbl_client zen.spamhaus.org

• Stop other zombies with greylisting, e.g., with postgrey.
• If the remaing spam bothers you, look into amavisd-new and other deep inspection systems. Use these only for mail that isn't cleaned via other means.