Verify the CalDAV services are enabled in MDaemon:
On the Mac computer:
Connecting via SSL (HTTPS) on the standard port (TCP port 443):
Connecting without SSL (HTTPS) on a non-standard port:
Note: The Calendar APP on the MAC will automatically display any calendars you have permissions to see. If in MDaemon you are given permissions to see a new calendar, to get the MAC to refresh it’s calendar folder listings to display it choose the CMD + R shortcut.