Back to Directory

Posteo Review
Extremely affordable, anonymous email powered by 100% renewable energy.
Germany (GDPR)
Founded 2009
Zero-Knowledge
Free Plan
Mobile Apps
2FA Support
Custom Domain
Overview
Posteo is an independent email provider operating since 2009 from Berlin, Germany. The service has a radical focus on privacy, anonymity, and sustainability, and is 100% self-financed and ad-free. Posteo implements multiple layers of encryption including encrypted hard disks, TLS transport encryption, and user-configurable crypto mail storage. E2EE is supported via user-managed OpenPGP (Mailvelope) or S/MIME. The service's unique value is its combination of extreme affordability (€1/month), robust privacy through anonymity (accepts cash payments), and a strong ethical commitment to sustainability with 100% green energy.
Key Features
- Anonymous signup - no personal information required
- Cash payment accepted for complete anonymity
- Strong data minimization - no IP logging
- Full IMAP, POP3, CalDAV, CardDAV support
- Mailvelope integration for browser-based PGP
- 100% renewable energy from Green Planet Energy
- Simple, transparent pricing with optional add-ons
- Migration service for emails, contacts, calendars
- Encrypted address book and calendar option
- Regular transparency reports published
Pros
- Extremely affordable and transparent pricing (€1/month)
- Unmatched commitment to user anonymity and data minimization
- Supports anonymous cash payments
- Powered by 100% sustainable energy
- Full support for open standards (IMAP, CalDAV, etc.)
Cons
- No support for custom domains
- End-to-end encryption requires manual setup
- No dedicated mobile or desktop applications
- Does not accept cryptocurrency payments
Pricing
Standard: €1/month (4GB)
Add-ons: +€0.25/GB, +€0.10/alias
Technical Details
- Encryption
- OpenPGP, S/MIME, TLS with PFS
- Storage
- 4GB - 50GB
- Headquarters
- Berlin, Germany