ProtonMail vs Self Hosted Email in Switzerland

ProtonMail is the most well known encrypted email service in Switzerland, and perhaps the world. It began as a crowdfunded project initiated by a team of researchers at CERN, growing into the full-fledged email service it is today. Like we mentioned earlier, we love ProtonMail and their contribution to the browser-based encryption library, OpenPGP.js. What fewer people know though is that it’s possible to host your own email server in Switzerland – and use OpenPGP and/or S/MIME to exchange encrypted email.

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End-to-End Email Encryption with Mailcow Mail Server

Without encryption, plain text email messages can be easily intercepted and tampered with in-transit. Modern email servers, especially major webmail providers such as Gmail or Outlook.com, do typically exchange emails over SSL/TLS connections, reducing the likelihood of tampering, but this does not equate to zero-knowledge, end-to-end encryption. An email provider could be compelled by the authorities to decrypt and hand over the messages, either during the transmission process or when they land in a users’ inbox.

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