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Joined 2 years ago
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Cake day: August 2nd, 2023

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  • It is under certain circumstances. Specific to ProtonMail, it is E2E encrypted if you send a message to another ProtonMail user. They also have a feature where you can send an encrypted email to an outside address. I think in that case the recipient gets a link where they can then input the decryption password to read the message.

    But you’re right about any email you receive (from a non-ProtonMail address). Those can not be E2E encrypted and are only stored encrypted at rest.


  • Mailbox encrypts the email at rest on their servers but with the encryption keys they own. Protonmail, in contrast, uses zero access encryption where they encrypt your data with your public key and they do not know or have access to your private key to be able to decrypt the data even if they wanted to.

    Mailbox has a zero access encryption service called (I think) Guard that basically encrypts the email with PGP where they would no longer be able to decrypt your email. But it’s not enabled by default.