If you're looking to start self-hosting services so you can break free from the likes of Google, Apple, and Microsoft, you'll want to get to know Ubuntu Server.

With Ubuntu, like any operating system, obsolete or unnecessary files are not automatically destroyed. However it is possible to remove them and to save space using packages. When you download and ...

So unfortunately, I've been tasked with setting up an Ubuntu server to send and receive email (amongst other things). My friend is hosting the Ubuntu VM on his box, but has only done limited setup.