I've run my own mail for about 15 years. Just recently stopped.There was nothing wrong with the process, it worked. But I thought about how much time I've spent on running my own domain and email over the last couple decades, and added up what it got me over those years... and the value just wasn't there.

I know the article is concerned with owning your own data, and I appreciate the point. But finding a mail provider that meets your needs is, IMO, a better way to spend your time than just saying "Gmail isn't good for me, so I'll do my own."