Confidant Mail is a non-SMTP cryptographic email system for TCP/IP. It has its own client, server, and protocol. It is not compatible with SMTP, and any attempt to build gateways would compromise its security. Confidant Mail is intended to be used in parallel with legacy email where its capabilities are needed. It uses GNU Privacy Guard (GPG) for content encryption and authentication, and TLS 1.2 with ephemeral keys for transport encryption.

In exchange for breaking backward compatibility, Confidant Mail provides these benefits:

Confidant Mail works much like an SMTP-based email system. The main differences you will notice are:

To use Confidant Mail, you will need to sign up for an account at a service provider, or run a server youself. Running a server is easy compared to running an SMTP server. You do not need a DNS domain or a fixed IP address. You can move from a service provider to your own server, or vice versa, without losing your email address.

Proceed to the client setup or basic usage instructions.