I guess today's a "lets do N different mouse makes rocks do math" threads: this is yet another!

I was made aware that postfix has slop in it too, which means I will have to switch to Exim, which has an anti-LLM policy.

Unfortunately, Exim does not support the milter protocol, so I'd have to rewrite ryoms to work with Exim.

Alternatively: find an SMTP server that supports delivering to Aerogramme via LMTP, and supports milters, and has an anti-LLM policy.

That, or... write one. How hard can it be. For what I need, I don't need authentication, I don't need users, it never stores email locally, except during processing maybe.