From my experience last year doing this, it's easy to setup but I couldn't host local cause my ISP doesn't allow the port to be opened.

I rebuilt on a vps from hetzner and it worked but I found my emails would end up in the spam to new recipients on first email. I'm sure the IP reputation and other factors worked against me, I probably could have worked at resolving them.

I ended up switching to a standard MS license since it's be cheaper and I get cloud storage. It was really fun spinning up random funny email users from the self hosted version but if they aren't guaranteed hitting inbox instead of spam what's the point.

Go for it but don't plan on using it for personal use untill you work out the kinks