Hello,
in the System Preferences we blocked the iCloud pane. The user now can't set his Apple-ID and so on. This setting we push over a profile.
Now i have seen in Apple Mail or Apple Calendar that i can setup an iCloud account. In the menu Mail/Calendar i have the option "Add account...". In the next step i choose iCloud, write my Apple ID and the password and after them i can choose which iCloud services i wanna use.
What ist the way to restrict this?