“If someone without a Tresorit account receives an email sent with our email encryption service, an encrypted email template with a reference/link to the end-to-end encrypted content (this is similar to our file sharing service Send). As opposed to E2EE email services, this enables E2EE communication even with a recipient who doesn’t have a Tresorit account. “This ensures that reply emails are end-to-end encrypted even when sent by someone who doesn’t have a Tresorit account. “This is possible because replies are encrypted in the sender’s browser,” explains the spokeswoman. This means, no one besides the sender and the recipient is able to read them,” she told us.Įmail users who are not themselves Tresorit subscribers themselves but want to send an E2EE email reply to an E2EE email sent via Tresorit are able to do so without needing to have an account. “All emails and attachments sent with Tresorit’s email encryption as well as the replies sent to these (regardless of whether the sender of the reply has a Tresorit account) will be end-to-end encrypted with the encryption technology used in Tresorit’s cloud storage and file-sharing app.

From launch it’s available for Microsoft Outlook but further integrations are planned, including with Gmail.Īn Outlook user can access the function by clicking on the “Email Encryption” button that’s displayed in the top left corner, per a spokeswoman. How does the tool work? The Tresorit account holder downloads and installs the plug-in, which integrates with their existing email client. Tresorit’s E2EE module enables subscribers to send and receive strongly encrypted email messages via their usual email provider - with the level of security enhanced as the plug-in is wrapped in the same zero-knowledge promise Tresorit claims for its file storage and sharing products. Swiss-Hungarian end-to-end encrypted cloud services provider Tresorit has added a new string to its security bow: It’s started offering E2E encrypted email as a subscription add-on for business users of third-party email service providers.

Tresorit send