Add Shared Mailbox for Outlook on a MAC Click on Outlook and click on Preferences/Settings (varies based on Computer/Outlook version) Click on Accounts Click on the + sign and click on Open Shared Mailbox or click on Delegation and Sharing Enter the “shared mailbox” that you have permission for and click on Add. Outlook will confirm to see if you have permission for the mailbox. Check on the left side on the bar and your shared mailbox will be there.
