Tools · Chapter 5

Encrypted Email Providers

Six providers by encryption model, jurisdiction and free tier.

Encrypted Email Providers
ProviderEncryptionJurisdictionFree tierMy verdict
Proton MailE2E between Proton users, at-rest encryption otherwiseSwitzerlandYes (1GB)My recommendation. Swiss privacy law, zero-knowledge encryption, open source clients, bridge for desktop email clients. The gold standard.
Tutanota (Tuta)E2E between Tuta users, at-rest otherwiseGermanyYes (1GB)Excellent alternative. Strong German privacy law, fully open source, competitive pricing. Calendar included.
FastmailAt-rest encryption, no E2EAustraliaNoPrivacy-respecting but not zero-knowledge. Good for those who need full email client compatibility without privacy compromise. Not for sensitive communications.
MailfencePGP-based, at-restBelgiumYes (500MB)Solid option, Belgian law. Less polished than Proton/Tuta but technically sound.
GmailIn-transit onlyUSA (CLOUD Act)YesGoogle scans your email automatically to power its 'Smart' features, and collects extensive data on how you use it. Do not use for anything you consider private.
Outlook/HotmailIn-transit onlyUSA (CLOUD Act)YesMicrosoft reads your email. Marginally better than Gmail but not meaningfully private.

Reproduced verbatim from The Privacy Diet, Chapter 5 — “Encrypted Email Providers”. The book explains the reasoning behind each verdict.