Google announced on Friday that it’s adding end-to-end encryption to Gmail on the web, allowing enrolled Google Workspace users to send and receive encrypted emails within and outside their domain.

The company says that the feature is not yet available to users with personal Google Accounts or Google Workspace Essentials, Business Starter, Business Standard, Business Plus, Enterprise Essentials, Education Fundamentals, Frontline, and Nonprofits, as well as legacy G Suite Basic and Business customers.

Client-side encryption was already available for users of Google Drive, Google Docs, Sheets, Slides, Google Meet, and Google Calendar.

Once enabled, Gmail client-side encryption will ensure that any sensitive data delivered as part of the email’s body and attachments can not be decrypted by Google servers.

“With Google Workspace Client-side encryption, content encryption is handled in the client’s browser before any data is transmitted or stored in Drive’s cloud-based storage,” Google explained on its support website.

Gmail E2EE beta is currently available for Google Workspace Enterprise Plus, Education Plus, and Education Standard customers.