http://tutacomm6oqwlbbpd246mljjxpupuxxqj2jg5mfdyegeaetdauigslad.onion/blog/microsoft-office-365-email-alternative
Consequences for German schools The privacy concerns are so severe that German schools must no longer use Office 365. However, lots of schools, particularly
trade schools, use Office 365 to prepare students for office work with Word, Excel etc. Instead of Office 365, these
schools must now use on-premise licenses on local systems.