Really cool stuff !! Something I need to try out for sure !
Just to bad they didn’t add a multiuser setup example :( !
If you are doing any kind of multiuser mail node, you should have a separate SMTP system in front of this one that performs any necessary validation.
I’m trying to figure out how to add it to Mailcow Dockerized and hook the existing containers. If I sort it out, I’ll probably PR it to Mailcow. I think it would a nice addition to start to build out a network that isn’t susceptible to the same spam attacks as regular email (yet).
I hadn’t even heard of the underlying protocol NNCP yet, and it seems to solve out of the box several things I was trying to do in some of my own hobby-projects. I’d been battling with automating and integrating Tor/I2P, Openssl, Tox, GPG, Wireguard, etc. If NNCP lives up to the hype it will be a big shortcut, when I next get time to work on stuff :-)
I remember as a kid I set up one of the first private Echomail nodes as part of my RBBS bulletin board. UUCP was a big part of that, as I was the hop for other nodes coming onboard in my area. I added another half-dozen modems eventually just to handle the email traffic, then had to offload it to a university because I didn’t want to have to charge for the traffic and it was getting too big to handle. But it was pretty interesting at the time.