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Stop spam the expert way: Build an anti-spam email server

Posted on 23 May 2005 at 16:20

# Listed in sbl-xbl.spamhaus.org

# http://www.spamhaus.org/

header RCVD_IN_SBL eval:check_rbl( arelay', 'sbl-xbl.spamhaus.org.')

describe RCVD_IN_SBL Received via a relay in sbl-xbl.spamhaus.org

tflags RCVD_IN_SBLnet

score RCVD_IN_SBL5.0

Note that we have used a score of 5.0 here. It could be any number you like, and you can also change the general aggression settings of SpamAssassin. If too much spam is arriving in your mailbox, check the headers of these messages and see what score SpamAssassin is giving it. It will look something like this:

X-Spam-Status: No, score=3.6 required=5.0

Open your user_prefs file and find the line that reads required_score 5.0. Change this to read required_score 3, and make an effort to check the probably-spam file for the next few days, just in case any real mail gets junked.