Unless you use PGP, the email message is encrypted in transit using TLS and stored on our servers using zero-access encryption.

This is not possible if you use Password-protected Emails, which enable Proton Mail’s end-to-end encryption.Įmails from non-Proton Mail users to Proton Mail users Note, since these messages are encrypted but not end-to-end encrypted, Gmail, Yahoo, Hotmail, etc will be able to read these messages and hand them over.

Otherwise encrypted with TLS if the non-Proton Mail mail server supports it (most providers such as Gmail, Yahoo, Hotmail, etc, support TLS).

End-to-end encrypted if the Password-protected Emails (new window) feature is selected.

Always end-to-end encrypted (new window)Įmails from Proton Mail users to non-Proton Mail users.

Message sending Emails sent between Proton Mail users

In Proton Mail, the message body and attachments (new window) are fully encrypted. It provides a solution that’s so easy to use, any one can enjoy it.Īs discussed in What is encryption? (new window), encryption is critical to keeping your data safe. Encryption is at the heart of what makes Proton Mail (new window) special.

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