In the dialog box that opens, click Accounts. As a result of this upgrade, Outlook for Mac will now use the server-roamed list of calendars. Chose '.' From the provided options on its home, visit the “Calendar” feature and select the calendar you wish to export from the sidebar. Choose the calendar you want to share in the “Publish a calendar” section. You can also find it via Spotlight (the magnifying glass on the top right of your screen). Under People I am a delegate for, click on ' +' to add a person. Here are the steps to add a shared calendar. A new Calendar Properties window will open. How to share outlook calendar on mac Enable the Sync shared mailbox option.