Caldav and Carddav authentication error with user@domain.com

Hi, I'm trying to connect a user's calendar user@domain.com to his mac's calendar. There is no way. When I put the username and password it always gives an authentication error. Use: https: // : / rpc / principals / On the other hand, I can connect it with the general cpanel user and the cpanel password. Is it working for someone? My settings: CENTOS 7.9 virtuozzo v90.0.17 Horde: Groupware 5.2.22 I've been looking for information and possible solutions for days and there is no way to find how to make it work. All help will be well received !!