Outlook 2003 remote internet access to Exchange server not working

We have a Exchange 2007 server which can be remotely accessed over Internet HTTP via OWA.

But when we try to setup internet access for Outlook 2003 using "connect to my Exchange mailbox using HTTP" it doesn't work.

Any suggestions?

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Setting up OWA is for internet browsers, it is not enough to enable you to use Outlook using RPC over http.

If you read through the article posted by collins23 - can you confirm that you have completed the additional tasks in order to enable this.
sidartraAuthor Commented:

I read the postings, but it does not give me enough detail steps (or I am plain dumb). Are there any guides with detailed steps for Outlook 2003 to access RPC over HTTP?  I have RPC installed.

I seem to be stuck at many places - the server cert, the default website - my DNS points to exchange.company.com but internal server name is msx.company.lan: any issues? the server name on the cert is just msx: any issues?  

preferably there is a step by step from start to finish in setting up remote access for Outlook 2003 using RPC/HTTP.

Many thanks.

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sidartraAuthor Commented:
I could not understand the steps and I suspect it is some configuration with the RPC over HTTP and it has to be aligned to the DNS name, cert name ... too many complicated steps which I am not familiar with. So to use OWA for now.
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