Email encryption

1. Proton Mail
2. Email encryption

As of January 2020, Proton Mail no longer supports TLS versions 1.0 and 1.1. Going forward, we will only support TLS 1.2 or later.

1. Proton Mail
2. Email encryption

1. Proton Mail
2. Email encryption

Proton Mail supports PGP encryption to send encrypted messages to encrypt emails: PGP/MIME and PGP/Inline.

1. Proton Mail
2. Email encryption

Digital signatures are like a physical signature but on a specific piece of data — one of several ways Proton uses to protect your privacy and security.

1. Proton Mail
2. Email encryption

1. Proton Mail
2. Email encryption

1. Proton Mail
2. Email encryption

Proton Mail is the only email service in the world that provides automatic PGP support out of the box. Learn how to enable PGP encrypted emails from Facebook.

1. Proton Mail
2. Email encryption

We explain what exactly is encrypted in Proton Mail and how to send end-to-end encrypted messages to non-Proton Mail users.

1. Proton Mail
2. Email encryption

Proton Mail lets you easily send secure, end-to-end encrypted emails to non-Proton Mail email addresses using a password.

1. Proton Mail
2. Email encryption

Find out what encryption is, how Proton Mail uses it to secure your messages, and what happens to them if the right decryption key is not used.