Push/redirect emails from Outlook

[haddman]

I'm looking for a good program that can be installed on your desktop top push or redirect emails to the iPhone. There is one I have seen in the past talked about on these message boards, but I can't remember it nor seem to find it searching the posts. Basically it was a service where you had a program you set up on your desktop and then configured either an exchange or IMAP client on your iphone. Any suggestions would be appreciated. Thanks.