Tuta Mail

Proton Mail, an encrypted email service from Proton, offers end-to-end encryption for messages between users, password-protected emails to non-users, and a free tier, with paid plans starting at $3.99…

Agent-Native Mail, an open-source, keyboard-first Gmail client with a built-in agent, is among nine Gmail-compatible alternatives featured in a 2026 guide that focuses on AI tools that can search, sor…