i used this a couple years ago, when it was a new product. It worked well, and was very inexpensive. I've since moved on to an email relay server running spamassassin sitting in front of the exchange server, which works well and gives me some options. With the open relay filter, you just set it up, nothing else was needed. It looks like now it has much more features than when I used it... give it a try! -Shawn -----Original Message----- From: Kevin Droz [mailto:drozk@xxxxxxxxxxx] Sent: Friday, October 28, 2005 2:55 PM To: msexchange@xxxxxxxxxxxxx Subject: [msexchange] OR Filter I'm running Exchange 2000 at one of my sites and looking for a effective way to do some SPAM filtering. I know the big names but of course we are considering the free options first. I found the one called "Open Relay (OR) Filter" @ http://martijnjongen.com. It seems to have nice features and very similar to some Linux based filtering products. If anyone has experience with this package please let me know how has it worked. Thanks, Kevin