Quick and Dirty Guide:

1) ***************************************************************
Put this line in your .forward file:

"|IFS=' ' && exec /usr/local/bin/procmail -f- || exit 75 #username"

KEEP THE QUOTATION MARKS.  REPLACE "username" WITH YOUR CS USERNAME.
Your .forward file may NOT contain any other content.

2) ***************************************************************
Put these two lines in your .procmailrc file:

:0fw: spamassassin.lock
| /usr/local/bin/spamc -s 256000

Your .procmailrc file may NOT contain any other content, unless
you are familiar with procmail and know what you are doing.

3) ***************************************************************

If you receive spam messages not flagged with [SPAM], do the following:

bounce/redirect them to spamtrap@cs.wmich.edu.

if your mail program does not support bounce/redirect, then forward  
the message to spamtrap@cs.wmich.edu.

4) ***************************************************************

If Spamassassin misidentifies legitimate ("ham") messages as spam,  
forward them to hamtrap@cs.wmich.edu

******************************************************************


More detailed version:

Spamassassin is now installed on the CS mail server.  We have been  
testing it and are pleased with the results.

If you wish to have Spamassassin check your e-mail for spam, you will  
need to replace the text in your
.forward and .procmailrc files with the text provided below.

The text shown below is the ONLY text that should be in these files  
unless you are familiar with procmail and know what you are doing.

This line (ONLY) belongs in your .forward file (replace "username"  
with your CS username, and KEEP THE QUOTATION MARKS):

"|IFS=' ' && exec /usr/local/bin/procmail -f- || exit 75 #username"


These two lines (ONLY) belong in your .procmailrc file:

:0fw: spamassassin.lock
| /usr/local/bin/spamc -s 256000


If Spamassassin fails to recognize a spam message you should bounce  
or redirect the mesage to spamtrap@cs.wmich.edu.
If your mail program does not support bounce, use forward to send the  
message to spamtrap@cs.wmich.edu.  This will help
train spamassassin to recognize spam more accurately.

When Spamassassin identifies a spam message, it prepends "[SPAM]" to  
the message's subject line.  Occasionally,
Spamassassin may make a mistake and identify a legitimate message  
(called "ham" in Spamassassin jargon) as a spam message.
If you see a message flagged as spam that is actually ham, forward it  
to hamtrap@cs.wmich.edu to train Spamassassin to recognize it as  
legitimate mail.