We use Exchange 2003 and I have 4 users who use Outlook. These users would like an additional mailbox within their profile, example: firstname.lastname@example.org.
So I setup a mailbox on the Exchange server, email@example.com. Within AD I setup permissions on this mailbox (Exchange Advanced tab>Mailbox Rights) and gave the 4 users full control.
I then went to the 4 users machines and within Account Settings>More Settings>Advanced tab I added the additional mailbox.
The users are receiving mail to this account, however when they send mail from this account it returns an undeliverable stating they don't have permission to send from the firstname.lastname@example.org
Please help me resolve this SEND MAIL problem. Thanks.