According to their website, the company uses 100% green energy, and banks with the German Bank for Social Economy. Heinlein Support GmbH owns and manages their own hardware rather than renting servers from third parties. The mail servers are located in two geographically separate German locations and run in parallel. (Note that this is not the case with some other secure email providers, as we covered in the ProtonMail review.) The service is privately funded and debt-free, protecting it from influence by outside investors. The email service is based on an earlier product, which was redesigned and rebranded as for its 2014 relaunch. is a product of Heinlein Support GmbH, based in Berlin, Germany.

We’ll take an in-depth look at some of these features below. Enhanced Security Certificate provided by SwissSign Certificate Authority.Top rating for Privacy and Data Protection by Stiftung Warentest.Publishes Transparency Report and a detailed Privacy Policy.A clean, three-pane UI with drag-and-drop capability.An automatic, guided tour of all the features and apps.An expanded range of apps: Mail, Calendar, Address Book, Drive (cloud storage), Tasks, Portal (access to all apps), Text, Spreadsheet, Presentation, Webchat.has several features that help it stand out from the crowd of secure email services. PGP encryption leaves message subject and metadata exposed.No mobile email clients (but can be used with third-party email clients).

Email services like protonmail