Hi I know nothing about coding whatsoever. Im curious why would someone set up a something like this? You would have to host your own mail server correct? Is it to have control over your data? Is it just "simpler" and faster than gmail?
It is occasionally convenient: anywhere you can sit down at a web browser, you can read your mail. I think that it's not really featureful enough to be the primary mail client for most HN readers.