Exchange Client That Supports Rules
You can configure your rules on your server account to do that, so you don’t need the filtering rules on every client. Is very practical.

But don't remember now if K9 Mail client offer filtering/rule system

Also there is SEVEN Mail client that if i´m not wrong you can create and modify server-side email rules. With SEVEN you will get  PUSH mail notification for mail, exchange, imap, yahoo, etc...

Note1: Your can create the rules through OWA(Outlook Web Access). Rules created through OWA are Server side rules. Your Exchange server should have a OWA access point. Usually something like : https://owa.yourserverdomain.com