I have my own domain, my own bind and my own mail servers. I forward all the mail to google for reading and searching and the main value I get out of it is I actually understand how DNS and SMTP work. Which comes in handy once a quarter at work. I book marked TFA because I never got the newer (!) stuff setup like proper TLS and DKIM. It is very old setup from like 2005 or so and I think is grandfathered into Gmail somehow. At least my newest domain I treated worst than my older ones.