Important Mail Alert for Outlook 2.0
This free plug-in will notify you every time an important email arrives.
You just enter some key word, e.g. a name, email or some words from a subject or body, and the add-in alerts you once an e-mail with that text arrives. The add-in can find a message in any Inbox folder, even if it gets to Junk, or is moved to some other folder by your Outlook rule. Ablebits.com Important Mail Alert works with Outlook 2003 - 2010 and Exchange servers.