Click on ‘Settings’ and then on ‘Mail’Click on ‘Accounts’
Click on ‘Add account’
Select ‘Microsoft Exchange’
Under ‘Email’, enter your login name followed by ‘@hnee.de’ (NOT the email address!) and click ‘Next’
Here you select ‘Configure manually’ ...
...enter your login password and click ‘Next’
Click ‘Save’
This completes the setup.