Opening Additional Mailboxes in Outlook
To open an additional mailbox:
1. Click Tools | Email Accounts.
2. Select View or change existing e-mail accounts and click on Next.
3. Ensure that Microsoft Exchange Server is selected and click on Change.
4. Click on More Settings.
5. Select the Advanced tab and then click on Add.
6. Enter the name of the additional mailbox into the Add mailbox field and click on OK. The additional mailbox has now been added.
7. Click on OK.
8. Click on Next.
9. Click on Finish. The additional mailbox has now been added to the Navigation Pane.
Before you will be able to view the mailbox in Outlook, you must ensure that you have Full Access to the Mailbox.