One alternative to SMTP for email: Confidant Mail

Antony Prince antony at
Tue Mar 24 18:04:47 CET 2015

On 3/23/2015 11:27 PM, Mike Ingle wrote:
> There has been some discussion on gnupg-users about replacing SMTP for
> secure email, and how BitMessage does not scale.
> There is an open source non-SMTP email system called Confidant Mail,
> which is based on GnuPG and hash table storage. The protocol conceals
> metadata (headers like From and Subject are inside the envelope) and
> uses TLS. The client has built-in support for Tor and I2P anonymity. The
> system supports unlimited length attachments (over 4GB) using a
> torrent-like blocking protocol. Messages are GPG encrypted and signed,
> and all messages are acknowledged. Key distribution is built into the
> protocol.
> It's designed to scale using either DNS or a Kademlia DHT to look up
> keys. Servers are paired for high availability. The client can
> automatically configure itself from the server.
> The client is available for Windows, Linux and MacOS. You can run your
> own server, or get an account on the test environment to try it out
> immediately. More information and downloads at:
> Mike Ingle <mike at>
> d2b89e6f95e72e26e0c917d02d1847dfecfcd0c2

Wow... this is a great concept. I'm looking forward to trying it out.


Antony Prince

Key ID: 0x4F040744
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