Hey there I setup exchange to receive mail for 2 domains. Its working fine. As a contingency plan i want to setup a scenario in which even if my mail server aint available i shouldnt have LOST MAIL/ BOUNCED MAIL issues. I studied a few possibilities including clustering but that aint applicable to our scenario. The possibility applicable is the presence of 2 mail servers on the same domain. If my primary mail server is not available for some reason, my second machine takes over. I know thats possible but HOW? Can someone guide me to the implementation. At the moment, i have one machine servicing clients for 2 domains. Using Exchange 2000 on Windows Adv Server... Umar