Ugh. Yet another intriguing email startup being acquihired and killed off by a more-established tech company (see also: Sparrow). It's 2015 and I still bounce around email clients every couple months because all of the major options have substantial flaws.
Everyone want to "fix" email, and replace it with some proprietary bullshit. Email isn't broken.
Spam, in the I'm getting random Viagra emails sense, is being handle very well lately.
That said... We have a very large industry that easily helps you get your "ham" (the mail in-between Spam and mail you really want to receive) inboxed.
This is email from legit companies. Maybe you signed up to a newsletter, maybe you didn't. Maybe you're just getting a cold email. But those emails are inboxed.
People are still complaining about being overwhelmed by their email, even though our Spam filters have improved greatly.