SpamAssassin on CentOS 4 Quickly

published on 2006-12-14 in computing

Here's how I did it company wide:

1. install spamassassin. I used an RPM for ease, and went with 3.1.x for it's sophisticated new filters and sa-update ability.

2. install perl module dependancy for sa-update:

     # perl -MCPAN -e "install Archive::Tar;"
   

3. install procmail

4. run sa-update:

   # sa-update
   

5. start up spamassassin:

   # /etc/init.d/spamd start
   

6. create global procmail rule like this:

   LOGFILE=/var/log/procmail.log
   
   # send mail thru spamassassin
   :0 fw
   * < 256000
   | /usr/bin/spamc -f -u $LOGNAME
   
   DROPPRIVS=YES
   
   # All mail tagged as spam (eg. with a score higher than the set threshold)
   # is moved to "spam".
   :0:
   * ^X-Spam-Status: Yes
   $HOME/mail/spam
   

7. Don't forget to bootstrap SpamAssassin:

   # chkconfig --add spamassassin
   # chkconfig spamassassin on
   

Now all your users' mail that scores a 5.0 or greater (default settings) will go into a folder named 'spam'. Now isn't that nice.