I've switched to the all new Y! Calendar (Canada) but Zimbra Desktop tells me it can't sync with my Yahoo account, because I haven't switched to the all new Yahoo Calendar. There seems to be some confusion maybe between Yahoo and Yahoo Canada. My email address is at yahoo.com. Yet any new Yahoo services kick me automatically to Yahoo Canada, because my home profile is in Canada.
So I really don't know what to do to sync my Yahoo all new calendar (Canada) with my Zimbra desktop! The email syncs OK, only the calendar has this error.