Implementing Spam Blacklists

In migrating off our sendmail system to iMS5.1 I am needing to also migrate our spam filters. We are currently running checks off of relays.osirusoft.com and have in the past used orbz (now dslb) and MAPS. What is involved with implementing these under iMS?thanks,-patrick
[300 byte] By [707209] at [2007-11-25 8:05:44]
# 1
Patrick,Check out my site, <a href=" http://ims.balius.com/">ims.balius.com</a>. I've posted my complex anti-spam config, not perfect but catches a lot of stuff.Regards,Chad
707213 at 2007-7-1 13:54:53 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Messaging Server...
# 2
Thanks for the reply. I also found a reference to adding a line in your dispatcher.cnf file for the DNS_VERIFY_DOMAIN=some.blacklist.com . Is there any advantage of your method vs. this method.thanks,Patrick
707209 at 2007-7-1 13:54:53 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Messaging Server...
# 3

the dispatcher.cnf method applies to all incoming connections, where as my method (if you move a line up some) will only cause say rbl to be checked for mail coming from the Internet. Mine you can use to log the entries to your mail.log_current file and thus you could generate stats and the like. Its a matter of choice. the dispatcher was done as lots of people were asking to be able to do this but did had a difficult time understanding the complexity of the mappings. Which I still do not understand 100%, probably never will. :)

708686 at 2007-7-1 13:54:53 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Messaging Server...