TigerMail is asynchronous, distributed and quite secure e-mail system.
- It uses Signal protocol for encryption with forward secrecy,
- It's both asynchronous (peers don't need to be online at the same time) and distributed (peer-to-peer network),
- It's using already existing distributed networks:
- It works by exposing POP3 and SMTP sockets, so you can use your favorite email client.