I have an exchange 5.5 Server that sits on Windows NT 4.0. Once a week, one of our users sends out an email to a about 2000 users, sort of a weekly update. For the last month or so, We have been getting lots of people saying they get the email 5 times over the course of several days. I cannot tell that anything is wrong with the server. We do restart the server every morning, and one thing I was thinking was that maybe some are stuck and keep getting resent when the server starts, but nothing shows in the queue? Any suggestions?