This is why I contributed to Mailpile(http://www.mailpile.is/)'s fundraiser and hang out in their IRC channel. We need more, better, easy-to-use distributed, crypto-friendly mail software, and we need them yesterday. :/
Bitmessage is fairly atrocious to use in practise. It's slow (by design) and extremely difficult to use properly. Moreover, I'd bet my hat that it's not secure.