The service offers RSA 2048-bit and AES 256-bit protocols, using RSA 2048-bit for emails between users and AES 256-bit for communications between users and non-users. Tutanota also uses perfect forward secrecy, a style of encryption that prevents cybercriminals from accessing future sessions after hacking a previous one.ĭespite not encrypting email subject lines, ProtonMail provides almost the same level of end-to-end encryption. Though Tutanota doesn't support OpenPGP, it uses the same algorithm as Pretty Good Privacy (PGP), a program used to encrypt and decrypt emails. The paid version of ProtonMail enables you to have more inbox space, a shorter email address (eg ), IMAP support, auto-responder, more labels & filters for better inbox organization, etc. It encrypts your email subject lines, body, calendar, and address book, keeping your contacts and meetings secure. If you are satisfied with the free plan that sounds great and you never have to upgrade. This makes it easy for you to use Proton Mail to handle your business communications, even when you’re on the go. Tutanota encrypts more sections of your email and inbox than ProtonMail. Support for multiple accounts is built into the Android app, allowing you to quickly switch between your accounts. Not even the company can decrypt your messages. Tutanota combines AES 128-bit and RSA 2048-bit protocols to provide end-to-end encryption.

Both email services use end-to-end encryption to secure the contents of your inbox, meaning only you can read them.

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