I am trying to setup a test exchange environment and I can’t find any documentation on this (or maybe its just really obvious), but I am trying to figure out what happens if I have two exchange server and one goes down. Would all of the mailboxes on that server not recieve email for the time that the server is down? Even if I setup the MX records for both servers would exchange still except email for a person that doesn’t have a mailbox on its server? Or is the only way to get around this problem is to cluster exchange servers? Thanks.