Ah ditto is the best. Relay, nip05, administrative controls, web UI, uses postgresql, spam filtering how you like it
Discussion
I couldn't get it to work. I was really hoping to. At some point, I want to tear down my home lab setup and redo it behind nginx proxy manager. Right now I'm using cloud panel, but I get internal errors when I reverse proxy some applications. NPM would just be easier.
Oh. I will even help you install it when you are ready. I had to make one tweak to make it work right when used ams a reverse proxy (