If you just like the hotmail or gmail email panel, you can direct one of your domains to their servers. You can even offer email accounts to your visitors. Are you seeing the possibilities 
?
You’ll have hotmail and gmail for your domain! People branding and promotion your name for free.
Ok, next Xmas :xmas: , don’t forget this guy 
It’s still a long way until my birthday :cake:
PM me if you need more info.