Set up CardDAV Connection on an Android Phone

To use CardDAV on an Android phone, you need an external app available from Google Play.
We recommend the app "CardDAV-Sync free beta" or its paid version "CardDAV-Sync beta" by Marten Gajda.

For details on the differences between the versions, see: https://dmfs.org/carddav/

1. After installing the app, open it and tap "Add new account".
2. Enter the following information in the corresponding fields:
   • Server name or URL: adressbuch.mail.de
   • Check "Use SSL"
   • Username: your mail.fr prefix (everything before the @ in your email address)
   • Password: your mail.fr password
3. Tap "Next".
4. Give the account a name. By default, "All mail.fr Contacts" is entered.
5. If you want changes to sync both ways (phone ↔ mail.fr) and not just from mail.fr to your Android phone,
   uncheck "Sync from server to phone only".
6. Tap "Finish".
7. The CardDAV account is now set up.
8. When you open the contacts app, you will be prompted to add the new CardDAV contacts to the "All Contacts" list.
9. Tap "OK".
10. The new address book is now available.
    You can also display it individually by clicking the arrow at the top.
    Normally, "All Contacts" shows a combined list of all contacts from all address books.

Important Note: Because the Android contacts app cannot edit CardDAV contacts directly,
you must install an additional app: "Contact Editor Free" or "Contact Editor Pro".