Hi Larry. My company, Mail's Best Friend is a reseller of both Cyren and Message Sniffer. In my experience and opinion, Message Sniffer is better and cheaper. We can offer you a free trial of either or both if you like, with no obligation to buy. We also offer the lowest prices on both. If you are interested, please contact me directly at the email address in my signature. I will be happy to get you set up. Thanks!