We have some users who work remotely and they access their e-mail in Outlook 2003 using RPC over HTTP. We just hired another sales guy and the laptop we bought for him came with Office 2010, so I decided to give it a whirl. I set it up the same as I normally would for Outlook 2003 and sent him on his merry way. Now he's back home several thousand miles away and can't get to his e-mail. He is able to access his e-mail using Outlook Web Access.
Searching around on Google, lots of people were pointing to https://testexchangeconnectivity.com/ so I gave that a try. Most of the steps are successful, but it fails on "Attempting to ping RPC endpoint 6001 (Exchange Information Store)". I'd like to fix this, though I suspect fixing it may not automatically fix the outlook 2010 issue.
I checked the registry setting for ValidPorts, and it's configured correctly. I have ports 80, 443, and 6001-6004 being forwarded on the router to the Exchange server.
If Outlook 2010 just won't work with Exchange 2003, I can accept that, though trying to rectify it will be interesting because I don't expect this guy will be back in the office for a long time. Has anybody got Outlook 2010 working with Exchange 2003 using RPC over HTTP?
If you have a solution, or something you want me to do to help investigate the problem, please give specific steps. Exchange Server is slightly outside my area of expertise.
Best Answer
The Office 2010 user showed up in my office today, so I downgraded him to Outlook 2003.