Tuta vs Paubox
Tuta
Tuta (formerly Tutanota) is an open-source, end-to-end encrypted email provider based in Germany. Every email, contact, and calendar entry is encrypted at rest with zero-access architecture. Tuta uses its own encryption protocols rather than PGP, encrypting subject lines in addition to message bodies. While primarily focused on GDPR compliance and personal privacy, Tuta's business plans offer custom domains, team management, and whitelabel options.
Pros
- Fully open-source codebase
- Encrypts subject lines — not just bodies
- Affordable pricing for small teams
- German jurisdiction with strong privacy laws
- No tracking or advertising
Cons
- No HIPAA BAA available
- Custom encryption protocol (not PGP/S/MIME)
- Limited enterprise admin features
- Fewer integrations than established platforms
- No bridge app for third-party mail clients
Pricing: From $8/user/month (Business)
Paubox
Paubox is a HIPAA-compliant email encryption platform purpose-built for healthcare organizations. It encrypts every outbound email by default using TLS with automatic fallback to a secure portal, so recipients read messages in their normal inbox without passwords or portals. Paubox is HITRUST CSF certified and signs BAAs, making it the go-to choice for hospitals, health systems, and medical practices that need frictionless HIPAA-compliant email.
Pros
- No portal login required for recipients
- HITRUST CSF certified — highest bar for healthcare
- Zero learning curve for senders
- Purpose-built for healthcare compliance
- Includes inbound email security
Cons
- Premium pricing for smaller practices
- Less granular sender control than end-to-end solutions
- Healthcare focus may not fit all industries
- No on-premise deployment option
Pricing: From $29/user/month