Allow Smart-Folders which shows mails by filter rules
Frank Helmschrott commented
should definitely sync with the desktop.
Alike google inbox
Pratyush Tewari commented
Boxer mail app foes that. Anyways it would be very helpful here as well.
That would be the killer feature to me. There ain't any other iOS mail client which supports that. And that's what I use the most on the desktop.
Scott Williams commented