alt.eMail - Send Spyproof Messages

Beepip uses your own computer's power to scramble messages. It then blasts these encrypted messages out over a peer-to-peer network and only descrambles them when they arrive at the right beepip address. Because no central server is involved, there is no chance of snooping.
Encrypted email isn't secure.
Unlike traditional email and instant messaging which leave data trails that companies and governments can access, the security and anonymity built into Beepip means that no outside force—not even the team that built Beepip—can see your messages or track down senders or receivers of messages.

Simply Beepip.
Beepip’s easy-to-use interface brings cryptography and secure communication to non-expert users, but also achieving military-grade security against hackers.
Whisper or shout Beepips.
A beepip can be sent to an individual or a whole group of subscribers. Broadcasts are messages that are sent out to any group of Beepip users that are listening. In this way, organisations or individuals can get information out to their subscribers anonymously if they choose. (more)