Love Mailpile, but for what it's worth, I have the exact same problem. Running mailpile on Windows 8. Entered Bjarni Runar Einarsson's email (since I don't ha

Love Mailpile, but for what it's worth, I have the exact same problem. Running mailpile on Windows 8. Entered Bjarni Runar Einarsson's email (since I don't have any friends who encrypt), and it searched for his key indefinitely. So I can't figure out a way to add recipient keys either via contacts.