DE · Germany (EU)
Free (1 GB) · From €3/mo (custom domain)
Tuta Mail
Replaces: Gmail, Outlook
Quantum-resistant encrypted email, calendar, and contacts hosted on 100% renewable-energy servers in Germany.
The Catch (read before switching): No IMAP or SMTP support—you are locked into using Tuta’s own web, desktop, or mobile apps rather than Thunderbird or Apple Mail.
Hard Constraints Checklist
- Open SourceYes
- Self-HostableNo
- Permanent Free TierYes
- Headquartered Outside USYes
- Zero Tracking / E2EEYes