When you sync your address book with your Mac, you can use email addresses, postal addresses, and other data from the Posteo address book locally in apps such as Mail, Calendar, or Maps.

In this help article, we explain how to set up and automatically synchronize your Posteo address book in the Mac address book.

How to synchronize your Posteo address book with macOS

1. Click on Contacts in the macOS menu bar.
2. Click on Settings.
3. Open the section Accounts.
4. Click on the plus symbol on the bottom left.
5. Select Other contacts account ….
6. Click on Continue.
7. Select CardDAV in the first drop-down menu.
8. In the second drop-down menu, select Automatic.
9. Enter your Posteo email address and your Posteo password.
10. Click on Log in.

You have set up your Posteo address book in the macOS Contacts app. From now on, the app synchronizes the contacts automatically. In order to display the contacts in macOS, restart the Contacts app or the Mac at least once.

Privacy Tip

When you sync your Posteo address book with macOS, other apps can access it on demand. In Apple Mail, for example, you can use the address book to select the recipients of an email. You can see which apps are allowed to access your address book in the macOS system preferences.

To do so, open the System settings and click Security.

Under the menu for Privacy select Contacts. There, you can see all the apps that can access your address book. If you don't want an app to access your address book, simply uncheck the box next to the app.

Related help articles

• How do I synchronise Posteo notes with Mac OS X?
• How do I set up Posteo in Mail for Apple Mac OS X?
• How do I set up synchronisation of calendar entries with an Apple Mac OS X calendar?