iPhone ActiveSync
iPhone 2.0 Setup Procedure / Exchange Server
1. Install iTunes 7.7 and upgrade your phone to iPhone OS 2.0 if necessary
2. If you already have your Exchange server running with IMAP, disable the account in Mail Settings.

3. Set up a new mail account, selecting Exchange as in the photo above.

4. Enter your email address (e.g. “billg@microsoft.com”) in the Email box.
5. Enter your Exchange domain and username (e.g. “Domain\User”) in the Username box.
6. Enter your password (e.g. “MyPassWord”) in the Password box.
7. The iPhone might now warn you that it couldn’t validate your account. This is because it couldn’t correctly pick out your exchange server name. If this is the case, enter your server IP Address in the window. Make sure you enter your ActiveSync server IP, not the OWA server (as in Entourage) or the real Exchange server (as in Outlook).
* Also some Exchange servers require SSL to be disabled *

8. Now tap the home button and go into Mail. You should see your new account appear, and it should show your folders and email messages within a few moments. Congratulations! Email is now set up!

Next we will enable sync for Contacts and Calendars.
Note: You can’t sync Contacts and Calendars from both Exchange and iTunes! You must choose one or the other! And the iPhone will delete your old entries when you enable this!
1. Once you’re sure email is working, go back into the Exchange Account Settings tab (shown above) and tap Contacts to “ON”.

2. The iPhone will warn you about deleting your existing entries, just like I just did! If you’re sure, tap “Sync”.

3. Now the iPhone will enable Sync. Do not go running up to the Calendar or (new!) Contacts App and expect to see everything there immediately. It takes about 5 minutes to populate.
4. Do the same for Calendar and you’re all set. Wait a few and you will have pretty much full over-the-air Email, Contacts, and Calendar integration!