I have Exchange 2003 enterprise edition email server and a user who I recently changed her name because of a marital status. So what I did was give her new last name and under alias have her old email address, which is her old email name and it doesnt work. When I send her an email using the alias (her old email address) I receive a bounce back that says the person does not exist. I clearly see that alias is there but yet I immediately get a bounce back. Please advise what could be going wrong.