On the Tools menu, click Account Settings.
Highlight Microsoft Exchange under the e-mail tab.
Select the change button.
Select the More Settings button.
Select the Advanced tab.
Click the Add button and type in the e-mail address of the mailbox that you would like to add to your exchange profile.
Note: You need access permission assigned to the top folder (that is, the mailbox itself), as well as each individual folder of the mailbox you add.
