Adding Shared Mailbox or Second User to Outlook (on Mac)

Modified on Wed, 30 Jul, 2025 at 9:02 AM

Follow these instructions when adding either a shared mailbox or a secondary Outlook user to your Outlook app on MacOS devices.


  • Open up your Outlook app on your Macbook
  • Click on 'File' in your top mac bar
  • Choose 'Open' > 'Shared Mailbox'
  • Search for the mailbox you are wanting to add, you may need to enter in the entire mailbox address
  • Click 'Add'
    • The system will reference your account permissions to then add the account to your Outlook app.
    • You may get asked to sign in, just be sure to use YOUR login credentials; There is an option under the login to use a 'Different Account' if your email doesn't automatically show up in the new login window, if it even asks.



After the window closes you'll notice the newly added shared mailbox in both the 'Mail' and 'Calendar' tabs within Outlook (you may need to scroll down in the left hand menu to locate the mailbox).

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