How do I sync my Zimbra calendars using CalDAV in iCal

This article describes the steps to successfully sync Zimbra calendars in iCal using CalDAV with Mac OS X 10.6 (Snow Leopard) or later. Note that CalDAV is only supported on Mac OS X 10.5 or higher.

Open iCal:

Navigate to iCal > Preferences:

Click on Accounts, then press the "+" sign in the lower left of the Preferences window to add a new CalDAV account:

In the 'Add an Account' window, select 'CalDAV' as the account type and enter your Zimbra account details:

Username: your full Zimbra email address
Password: your Zimbra account password
Server address: your Zimbra server address.  If you are not sure what the address to use is, please contact your System Administrator or submit a ticket at

Once you have entered your server address, click the 'Create' button in the lower right corner to add your Zimbra account in iCal:

Once your Zimbra account is added to iCal, your Zimbra account calendars will sync:

Congratulations! You have successfully authenticated your Zimbra account in iCal with CalDAV. 


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