fakedcake
As you can see, that repo from 2 years ago even originates the "# attention, what we cannot get enough of" comment and is an exact 1:1 match to Automatics commit, while the one from NovelAI even has a small change in the if clause that Automatic doesn't have.
Arguably, a http based email protocol would be a good thing. Not only would it enable serverless, it would also enable all the features of http/2&3, like compression, multiplexing and better pipelining. Someone would just need to define it. The downside would be that VPS providers can not limit mail spam from their servers by just blocking outbound traffic on certain ports, so you'd find all their IPs to quickly be blacklisted. So the protocol should ideally somehow also offer some form of spam detection/prevention that works better than simple IP blacklists to prevent that.