DAVx⁵ has been successfully tested with Posteo.

posteo is an independent German mail provider, focused on renewability, security, privacy and easy usage.

DAVx⁵ settings

Base URL: (in case of problems, try port 8843)

User name: your posteo email address
Password: your posteo password

Contact group method: VCard contact groups are not supported. Choose the method used by your other clients or "per-contact categories" to minimize potential problems.

Known problems

There are known server problems with contact photos, recurring events and reminders. We have already reported those problems to Posteo.

Last updated: 30 Dec 2018