Hi Everyone, I was wondering if it is possible to have two Exchange 5.5 servers running on a network. One server is the existing mail server and the other would act as a backup server. Basically is it possible to have a mail server that can be brought online in the event that the main server goes down. And is there a way of keeping the servers synchronised also. I am new to exchange server, so i do apologise if this is a foolish question. Many Thanks, David.