specifically for mox there was some things i would have liked to see: explain how the webmail isn't accessible on the public ip by default - i don't know how many of you want to be in a specific vpn for checking your email, but i sure was surprised i couldn't reach it, but had to activate it in config (and first figure out how to even do that). mox also doesn't redirect to https by default - imo it should, since it already includes the convenient automated certificate setup (which worked great).
maybe it is intended for a different environment, but since it recommends not running another webserver on the same host, i really don't want to access the webmail from the local server or by http. i like most of my services being available behind a reverse proxy, there it would make more sense. maybe i'll look into that variant later, but the documentation isn't quite as complete as i'd like.