I've recently had a problem with an 3rd party application opening more than the 32 MAPI Session Limit on aE2K3 SP2 server. I shutdown adn restart the 3rd party app that runs on a seperate server from my Exchange Box but this didn't drop the open MAPi sessions and I had to reboot the Exchnage box to solve the problem. Just wondered if there were any tools that I could use to see the MAPI sessions on an Exchange Server and also, close any specific sessions rather than having to reboot the server.