All I have two outlook 2000 users that are having email delivery problems. The Server is a Win2k server running Exchange 5.5. When an email is sent to the users, from a co-worker, it takes anywhere from 10 minutes to 1 1/2 hours before its delivered. I did notice though that if I click on the calendar or contacts the messages deliver. All other users are working fine... The problem seems to be on the users local machine.. HELP!!!!