Hello,
I am in the process of turning on Internet calendar sharing. Once concern I have is security. I would like users to be able to "Subscribe to calendars from outside the company on non domain computers. However some calendars will have sensitive information that needs to be secure. I am running https however it appears you can still just guess the calendar URL, or scan for it and view the calendar. Is it possible to require logins to a calendar subscription and how do I go about that if it is?