How do I sync my contacts with MacOS?
Open “Preferences” in Mac Contacts and click “Accounts”.
Click “+” in the bottom left hand corner to add a new account.
Choose “Other contacts account” from the end of the list and click “continue”.
Make sure “CardDAV” is selected in the dropdown box at the top.
Enter your Contactzilla username and password.
For “Server Address” enter the URL of the Contactzilla address book you wish to sync, without the ‘https://’ part (e.g. mac-contacts.contactzilla.com).
Here’s an example of what the completed form might look like.
The sync may take a few minutes. When the sync is complete, you will be able to see your Contactzilla address in Mac Contacts.