To access the calendar

  1. Sign in to your mailbox using Outlook Web App. If you're using Office 365, sign in to your account at the Microsoft Online Portal.

  2. Right-click OTHER CALENDARS, and then click open calendar.

    Outlook Web App open calendar menu

  3. In From Directory, search for the shared calendar you want to open. Select the shared mailbox you want to open, and then click Open.

    Outlook Web App Open calendar dialog box

  4. The shared calendar displays in your Calendar folder list.

    Outlook Web App with a shared mailbox calendar selected