TMTP is a new Internet protocol combining elements of email and the web. TMTP offers a simple, reliable, free, secure, decentralized method for messaging & correspondence & notification.

Online services lack a way to directly message their customers/members. Email (SMTP etc) is unreliable, insecure, and typically transits multiple third-party hosts between sender & recipient. (Email also has other painful problems!) Text messaging (SMS) is expensive. Some sites patch this gap by building & maintaining custom phone apps—at great cost.

The client and server are open source, subject to the terms of the Mozilla Public License, v2.0.