DAVx⁵ has been successfully tested with Mailfence.

Mailfence is a secure and private mail service, that provides an end-to-end encrypted email with digital signing.

DAVx⁵ settings

Base URL:

Contact group method: groups are per-contact categories (contact groups are mapped to Mailfence contact tags)

User name and password: your Mailfence login data

Last updated: 07 Feb 2019