I have created a new user account on an exchange 2003 server SP2 (windows 2003 standard R2) and for some reason it will not create an exchange mailbox even though the option is checked. It says the mailbox has been created but i do not see it in "Exchange system manager" and no email address appears in the new account i created. I rebooted the server to be on the safe side. I have tried copying a user account. Creating a new account from scratch and even from another server on the same domain and running exchange tasks to create the mailbox. I get no errors but i dont get an mailbox either.