Out of nowhere, one of the users on the domain can no longer send mail through a shared mailbox.
The user logs into the terminal using one username and there is another, "Shared", username within outlook. I have checked permsissions in exchange server and even added that specific user with full permissions and I still recieve the message:
You do not have permission to send to this recipient. For assistance, contact your system administrator.
MSEXCH:MSExchangeIS:/DC=local/DC=xx:xxxxx (x = domain name)
Any thoughts on what could cause this? I am able to see all of the incoming, but it is getting rejected from the server.
I have tried other accounts setup the same way, and they can send.
Thanks in advance.