How to connect to a Shared Mailbox in Outlook for Mac
To add mailboxes to which you have been given access, follow the below instructions:
- Go to the Outlook menu
- Select Preferences
- Select Accounts
- Select Advanced in the bottom right.

- In the Delegates tab, click the plus (+) below Open These Additional Mailboxes pane
- Find the mailbox(es) you want by typing them in the search box. Note: Outlook may pause for a while as it loads the mailbox.
- Once Outlook is done, click OK.