Adding an Microsoft 365 Shared Mailbox in Outlook (Mac)

Adding Shared Mailbox in Outlook

  1. Open Outlook.
  2. On the top bar, choose Outlook > Preferences
  3. In the Preferences pane, select Accounts.

Screenshot of the outlook preferences section

  1. Find your Microsoft 365 account in the list and select Delegation and Sharing.

Image of the M365 Account page

  1. Switch to the Shared With Me tab > Plus sign icon on the bottom left.

Screenshot of the Shared with me page

  1. Search for the mailbox, select it from the list and click Add.
    • You may need to type the entire email address in the search box.

Screenshot of the Open Mailbox page

  1. Click Done.
  2. Quit and Reopen Outlook.
    • If you still do not see the mailbox, click the Sync icon on the top ribbon.
  3. You should now see the mailbox in the left sidebar.


Article ID: 258
Mon 11/22/21 12:46 PM
Fri 2/2/24 1:57 PM

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Shared Mailboxes or System Mailboxes are mailboxes critical to department business processes and are often use to facilitate department and/or mass communication.  Shared Mailboxes are accessed by multiple users at the same time.