Add an Account to Mac Mail Open up the Mac Mail client and click Mail -> Add Account.Select Exchange if you’re using Office 365.Add your full email address and password, then click “Sign in”Choose the sync options and click “Done.” Updated on January 19, 2021 Was this article helpful? Yes No Related Articles MacOS – Join Support Session Share an Outlook Calendar Create a Team Sync folders with Teams Restart OneDrive Check permissions in Teams, SharePoint, and OneDrive