Tutanota is a German encrypted e-mail provider. Recently (Nov 2020) a Cologne court ordered them to implement a backdoor for a particular customer’s account. The order comes in the heels of a ransom note sent to an auto supplier.
ECJ’s “Gmail ruling” in 2019 refused to classify email as a telecommunication service thereby thwarting backdoor/monitoring requests as is often required from telecom service providers. A Hanover court had followed this precedent to grant reprieve to Tutanota back in April.
Source: Tutanota backdoor order (German)