ADD GMAIL MX RECORDS)
For our startup ideas we work with many droplets and many domains. It was getting insane managing and paying Google Apps for all of them, so we've built Migadu.com, mainly for our own needs. We've since opened it to the public. It pairs nicely with DigitalOcean: from 0 to email hosting for your droplet in a matter of seconds. You can use it for free if you don't send too many mails or 12$ a month for as many domains and mailboxes you want.