Hi guys im not really an exchange pro, and have a problem with just 1 account. All others can send and recieve fine. But exchange keeps bouncing this account either way,. Whast puzzling is that it seems to be setup exactly the same as the others, when i send from it i get an message saying your message did not reach all of the intended recipients then an lot of other stuff ending in 3902 (000b099c) host unknown. I checked this with microsoft faq and it says it a remote dun connection failure to my exchange box, but i dont use dun to connect to the server??any help would be greatly appreciated