There where some posts recently about calendar sync on Mac OSX here including some information of users which setup their Mac OS X sync correctly to get it to work:
  
  
    I am using the latest ubuntu 16.04 build of owncloud (9.1.1-1.2). I cannot get CardDAV working with Mac OS Sierra. 
When trying to add a CardDAV account and specifying the server address, path and port, I always receive "unable to verify account name or password". I have found out that there has been an issue with the "well-known" path  https://doc.owncloud.org/server/9.0/admin_manual/issues/general_troubleshooting.html , but the .htaccess file already contains the correct rewrite rule and the e…
   
 
  
  
    Hi, 
I'm trying to sync one of my friends' calendars in Mac OSX El Capitan. When I try to create a calDAV account and enter the required information, I get "unable to verify account name or password." error message. Here is the info I provide: 
Account name: manual User Name: joe Password: password Server Address: https://example.com/owncloud/remote.php/principals/users/joe  
Is the server address correct? Does it work with https? Because there is no http.