Ask HN: What other good mail providers are out there?

Just read this: http://news.ycombinator.com/item?id=3581613

There were a couple of providers mentioned, but nothing seemed to stand out as being better than GMail.

I've been using GMail since (approximately) 2004 and I've not come across anything better. I need to be able to send email from my domain. I want decent spam filters. And a way to pick up email from my phone. And a decent UI.

Other than that it can be ad-supported (as long as the ads aren't too obtrusive) but I don't want to pay anything.

So what else is out there?

Edit: I started a new thread because the other one was about moving away from Google. I just wondered what else was out there.