Your upTUdate account also provides access to many other services, such as TUownCloud, TUproCloud, TUfiles, TUhost, TUwiki, TicketSystem, or TUinsight, in addition to your calendar function.
Please activate your upTUdate email function by activating your account in Online Account Management:
First select "My Accounts", then select the account "upTUdate". Now you can activate your mailbox under "Change" with a click of the mouse.
The username is given, you can decide whether you want to use the TUaccount password or your own upTUdate password (if you select your own password, you can always return to your current TUaccount password).