I want to use and provide to synch contacts (stored in nextcloud contacts app) via CardDAV with the contacts in the Rainloop Webmail App. But everthing i’ve tried fails with an unknown error.
I am able to synch contacts via CardDAV in Thunderbird on a PC or via DAV-Clients on mobile devices. But i’m not able to synch Rainloop Contacts via DAV with nextcloud contacts.
Can anybody help me to solve this problem?
I’ve tried the URL from iOS or Android device - no success.
I’ve tried the URL from the settings dialog in nextcloud webUI - no success.