BitMessage is one of its kind communication protocol which makes communicating with another person or many; a lot more encrypted, secure and simpler than using complex programs like PGP or unsecure ones like E-mail.
Read next
How to Send Encrypted Email to External Recipients Without Breaking Workflowsvilenatom · 
Hive-Mail updated to v. 2.1: file encryption added!hassemer · 
THE SKILL I WOULD CHOOSE: if I has the ability to master it instantly.youngezeblinzz · 
The World of Cryptocurrency: What It Is, How It Works, and Why Everyone’s Talking About Itmirror15 ·
From @crazyask