I've recently recreated an exchange 2003 database and moved users over to it one by one (It's only a small number of users). All users can receive external email and internal email apart from one user. When I try to send her an email externally she receives it but internal users cannot send email to her even when they choose her from the address book. Her name appears in the GAL.
I've removed her smtp address and readded it but to no avail.
The error message other users receive is:
Your message did not reach some or all of the intended recipients.
Sent: 24/10/2008 12:18
The following recipient(s) cannot be reached:
user on 24/10/2008 12:18
The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the correct address.
Any insight would be appreciated.