Fastmail will let you do it for $50 per year if you pay upfront. Just not sure why anyone would run an email server other than extreme paranoia. It’s hardly a set it and forget it affair.
Switched to Fastmail and haven't looked back. Their Android and Web client are great and they've opened their JMAP[0] interface.
[0] http://jmap.io/
Compliance.
NDA's.
They have a very strong privacy policy, they’re not just going to hand your email over to a “random” person.
I set up my configs ~5 years ago, and other than apt-get update; apt-get dist-upgrade, I havent had to do anything