App to filter out unread emails?

[chopsxxx]

I think one of WM's biggest little annoyances is the total inability to sort by read/unread or filter out flagged emails. I've looked extensively over the years for software that will do this and there are only two as far as I can tell: Flexmail and PocketBreeze. Flex is not only overkill but doesnt handle Exchange well from what I remember, so I use PocketBreeze. Excellent program, but as of Manila 2.5 doesn't work so well on Manila Today Page. Works, but causes lots of instability, etc. I'd rather get away from resource-intensive old-school today screen plugins.

Is there anything out there that will do it on it as either a standalone app or a poutlook extension (preferable). Why wouldn't microsoft finally implement that? Its crazy scolling through 900 emails to look for 4 unreads...