How do I get Outlook Email from Exchange Server configured on iPhone?

Question

My business email is hosted on MS Exchange Server via Outlook and is distributed to my networked PC and VPN home PC and laptop. My IT manager has enabled IMAP on the Exchange Server. I am unable to get my email account on the iPhone to receive or send mail through my Server. My domain names have been entered in the format "exchange.[domainname].com, and my user ID and password has been input for both incoming and outgoing email. The iPhone cannot seem to talk to the server and retrieve or send mail. Does anyone know what to do on the iPhone to be able to communicate with the server? (I am aware of the various limitations of the iPhone vs. Windows Smart Phones in terms of being able to use Microsoft Push Email and to be able to synch calendars, contacts etc. with a corporate server and/or multiple computers. Hopefully Apple will license ActiveSync for the iPhone to provide for this functionality, as recently rumored on a few blogs.)

Answer 1

Thanks for your response. I've used the path that I had successfully used for years with my Windows Smartphone to no success. Neither advanced Apple telephone support nor my IT guy could get this to work. I have implemented a workaround to have my server automatically forward my emails to a new Yahoo account which then pushes to my iPhone. Definitely an unsatisfactory and incomplete solution, however.
Editorial comments for Apple: Windows ActiveSync was so much more sophisticated in terms of being able to deal with server-based email, contacts, calendar and for users with multiple computers - i.e. office, home and laptop. I would have expected Apple to introduce something at least as functional and sophisticated or to licence ActiveSync. My user capabilities are substantially downgraded in these areas with my new iPhone and absent a quick software upgrade or licence of ActiveSync I will be unable to function productively with my iPhone. While we're at it, Apple, with my multiple email accounts set up on the iPhone, which is a great feature, I have no easy way to tell in which account to find a new email. I am forced to update the inbox in every single account to try to find where my new mail is going - some new mail indicator next to the account name (as opposed to showing how many unread emails exist with each account) needs to be implemented. The phone hardware, other than the batter - which doesn't even last me for the full course of a workday - is great, but software has only gotten to about 75% of where it needs to be.