procmail setup 
Set up procmail
Create the .procmail directory
Create ~/.procmailrc
PROCMAILDIR=$HOME/.procmail
LOG=$PROCMAILDIR/pmlog
# VERBOSE=yes # turn this on for debugging
MAILDIR=$HOME/mail # this is for pine - yours may differ
INCLUDERC=$PROCMAILDIR/rc.spam
# INCLUDERC=$PROCMAILDIR/rc.morefilters
# If none of the filters match, it will go to your inbox.
Create ~/.procmail/rc.spam
:0:
* ^X-Spam-Level: XXXXXXXX
zSpam
Test Mailing (from a different machine):
$ cat spam.txt | /usr/sbin/sendmail your-user@your-host.com
$ cat notspam.txt | /usr/sbin/sendmail your-user@your-host.com
This time, the non-spam should show up in your inbox, and the spam should go to the folder zSpam.
http://traxel.com/doc/spamassassin-setup.html
