Letterbox
Letterbox offers a secure email experience by enabling end-to-end encryption, ensuring that only the sender and receiver can access their communications. This iOS app, developed through research at Freie Universität Berlin, distinguishes between confidential and insecure emails, simplifying encryption for all users while remaining compatible with most email providers.
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Top Letterbox Features
- End-to-end encryption support
- Compatibility with most providers
- OpenPGP standard protocol
- Security state indication
- Confidential vs insecure mail distinction
- Free and open-source
- User-friendly encryption setup
- Ongoing research project integration
- Developed by academic institutions
- iOS application availability
- TestFlight early access
- Active development phase
- Community-driven feedback
- Enhanced email privacy
- Secure mail notifications
- Lab-tested security features
- Collaboration with tech partners
- Regular updates and improvements
- User education resources
- Research-based encryption methods.
