How to configure Apple iCal/Calendar to access your Zimbra mailbox calendar

  1. Open the iCal/Calendar App.
  2. Access the account configuration menu:
    1. If you are running OS X 10.9 “Mavericks”:
      1. From the Calendar dropdown menu on the top left, select Add Account
      2. Press Continue.
    2. For OS X 10.6 or 10.7:
      1. From the iCal menu, choose Preferences.
      2. Go to the Accounts tab and click the + sign to add a new account.
  3. Enter the following information:

    Account Type: CalDAV
    Username: IAS (e.g.
    Password: IAS user password
    Server Address:

  4. Click Create.

Your calendar will now appear in the left-hand column of the iCal window.