By utilizing end-to-end encryption, our zero knowledge architecture means sensitive data cannot be intercepted en-route or accessed on the server without explicit permission. The ProtonMail software does not have access to raw message data giving individuals and organizations complete control over their email communications and ensuring the highest level of confidentiality.</p> <p> <strong>Plans:</strong> </p> <p> <strong>ProtonMail Free</strong> provides the ability to easily send and receive end-to end encrypted email for everyone.