There was some effort towards it and I'm still running a dockerized version without any problms whatsoever, but the maintainer considered Docker too hard to set

There was some effort towards it and I'm still running a dockerized version without any problms whatsoever, but the maintainer considered Docker too hard to setup in the end (e.g. https://github.com/mail-in-a-box/mailinabox/issues/16 https://github.com/mail-in-a-box/mailinabox/issues/16)