I also came to the same conclusions 8 years ago after hosting my own email for more than 2 decades. You just can't do it on your own anymore. There are some pro

I also came to the same conclusions 8 years ago after hosting my own email for more than 2 decades. You just can't do it on your own anymore. There are some proposals how to fix this, but I think a more sane approach is whole email system overhaul/replacement with something better. Many people are thinking about this and come up with good ideas. I hope eventually one of them will get enough traction to replace our frankly outdated email technology.