In my organisation we are having 3 Exchange 2000 server and at the other site where I am siting is having Exchange 2003 server But Since 2 month we are facing memory utilization issue on my exchange server. it utilize 75% of memory out of 4 GB. that may cause some permanance issue with my server...how can resove the issue....Steps take by me a) Restarted the server many times. doesn't help.