-------------------------
SpamAssassin - www.spamassassin.org

	Intall it and get it working to your satisfaction on a local account.

        Once the local system is working set up for the remote Exchange
	users using the site-wide configuration files. I copied the 
	/etc/mail/spamassassin/ files to /root/.spamassassin

	For the Outlook 2K users to tweak their own hit score settings set up:

		spam_level_char H

	        spam_level_stars 1

	Now the users can set up a rule in their mail programs to look for:

		X-Spam-Level: HHHHH 

		if they want a score of 5.0 or better = spam

		X-Spam-Level: HHH

		if they want a score of 3.0 or better = spam

		etc.....

	For Outlook 97/98/OE filtering
	
		Change the subject of SPAM mail to *****SPAM***** 



-------------------------
Sendmail - www.sendmail.org -RH9 distribution

	Install it and get it working to your satisfaction with local mail.

	RH9 8.12.8
		sendmail-devel-8.12.8-5.90
		sendmail-cf-8.12.8-5.90
		sendmail-8.12.8-5.90
		check for compiled support MILTER using: 
			sendmail -bt -d0.1 < /dev/null
			RH9 installed as above supported it

	Support for running Spamassasin email filter machine in front of MS Exchange

		exDomain.com = domain with Exchange Server
		exHost.exDomain.com = host running Exchange Server software
		spamFilterBox.domain.com = box acting as SpamAssassin filter

		change MX record DNS entry for exDomain.com to add spamFilterBox.domain.com

			spamFilterBox.domain.com has highest priority; e.g.

				MX  5 spamFilterBox.domain.com.
				MX 10 exHost.exDomain.com.


		add the line to /etc/mail/mailertable:
		    to forward the mail to the exchange server
			
			exDomain.com	esmtp:[exHost.exDomain.com]


		add the line to /etc/mail/relay-domains:
		    to relay mail for the exchange domain
		
			exDomain.com


		add the lines to /etc/mail/access:
		    to reject mail addressed to old or bogus accounts

		    note: get the valid user list from exchange via LDAP:
		    (ldapsearch -x -b "" -h exHost.exDomain.com rdn=*)

			exDomain.com             REJECT

			validUser1@exDomain.com      OK
			validUser2@exDomain.com      OK



		add the line to /etc/mail/sendmail.mc
		    to use dns black list for known spammers

		FEATURE(`dnsbl',`sbl.spamhaus.org',`Rejected (http://spamhaus.org/)')dnl

				
	
	
-------------------------
Spamass-Milter - http://savannah.nongnu.org/projects/spamass-milt/

	./configure
	make
	make install

	contrib/spamass-milter-redhat.rc copied to /etc/init.d/spamass-milter
		modifications:
			M_SOCKET=/var/run/sendmail/spamass.sock
			make sure all executable paths are consistant with "which spamass-milter" output
			modify chkconfig parameters to start before sendmail
                chkconfig --add spamass-milter

        add the following line to sendmail.mc:


INPUT_MAIL_FILTER(`spamassassin', `S=local:/var/run/sendmail/spamass.sock, F=, T=C:15m;S:4m;R:4m;E:10m')
			

-------------------------
Helpful links:

	http://www.peregrinehw.com/downloads/SpamAssassin/INSTALL-spamassmilter
	
	http://marc.theaimsgroup.com/?l=redhat-list&w=2&r=1&s=milter&q=b