Tip: Private Appointments in Outlook (Exchange)
A lot of people try to protect the content of their appointments by marking them as “Private”. Be careful, though, if rights have been assigned to a calendar. Individual clients ignore privately marked appointments.
Unfortunately, the mail server does not actually conceal the content. Exchange merely flags the appointments as “Private” in its design. It is the clients’ job to respect the marking.
Do not publish any sensitive or confidential information in Exchange appointments. Instead, communicate such information separately.