Free & Open-Source Gmail (Workspace) Alternatives

Google's business email with calendar and drive.

1. Tutanota ↗ ★ PICKFOSSPRIVATE
   Encrypted email + calendar from Germany.
   ●○○Easy · End-to-end encrypted
2. Mailcow ↗ FOSSPRIVATESELF-HOST
   Dockerized full self-hosted mail server.
   ●●○Medium · End-to-end encrypted
3. Mailu ↗ FOSSPRIVATESELF-HOST
   Simple self-hosted mail server with web admin.
   ●●○Medium · End-to-end encrypted