Yeah, probably, though computers take space, and electricity... though, admittedly, these days you can probably run a mail server on a raspberry pi (if you can get your hands on one) powered by a potato... 🤔

The plan sort of was to eventually (once I can afford a new machine) move everything to VMs, with GPU pass through for the gaming one (I can't afford a dedicated gaming machine — nor have the space for it — and I want something I can easily reset to a clean installation in case of Denuvo and similar malware without messing with my work software), but moving the servers and firewall to a small dedicated machine might indeed be a more realistic (and maybe even cheaper) approach...