

So first of all I am a bit confused about the difference between end-to-end encryption and zero access encryption. When a user logs in, the vault is opened, and the email is then moved to the vault out of the queue where it is decrypted by the corresponding private key." Startmail: "StartMail has zero access encryption at rest, using their "user vault" system. This means the messages and other data stored in your account are only readable by you." Tutanota: "Tutanota has zero access encryption at rest for your emails, address book contacts, and calendars. This means the messages stored in your account are only readable by you." Posteo: "Posteo has zero access encryption for email storage. New messages that you receive will then be immediately encrypted with your public key." : " allows for encryption of incoming mail using their encrypted mailbox.

Protonmail: "ProtonMail has zero access encryption at rest for your emails, address book contacts, and calendars. But just for emails, there is this list of recommended providers from : At this point I don't care about contacts or calendar encryption (which I know are fully E2E encrypted for Protonmail but not necessarily for others).
