Mark: I'll admit freely that I don't have enough information to answer your questions about SMTP vs. LSMTP and how NAV 2000 works procedurally. NAV 2000 has identified one virus-laden e-mail file in the SMTP/LSMTP system since July 1, 2000, and that file was stopped from distribution. As for performance, we only move about 1 - 1.5 million messages a month, usually in batches of a few hundred to a few thousand at a time. So, performance isn't really an issue for us; messages are processed quickly and the mail server is idle most of the time. M I C H A E L L. W Y L A N D Chief Operating Officer CharityChannel.com ________________________________________ CharityChannel LLC Midwest Office: 818 South Hawthorne Avenue Sioux Falls, South Dakota 57104-4537 (877) 7-CHARITY toll-free [log in to unmask]