You'll need to be on an enterprise plan to take advantage of this feature. Gmail is one of—if not the —most popular email platform in the world. But it's not the favorite for users who care about their privacy. Google doesn't offer end-to-end encryption (E2EE) for basic Gmail users, instead opting for "Transport Layer Security" (TLS). This provides security in transit , but ...
Google Is Now Rolling Out End-to-End Encryption for (Some) Gmail Users