Re: Problem Connecting to Exchange Server from Outlook

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no, open rpc ports is not required. it's can be difficult to configure rpc over http remotely. Have you tried having them use a hosts file with the external ip pointing to the internal mail server name (as seen in outlook when accts are set up inside the network)? This will usually take care of it.
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Diane Poremsky [MVP - Outlook]
Author, Teach Yourself Outlook 2003 in 24 Hours
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"DLN" <dnadon_nospm@xxxxxxxxxxx> wrote in message news:uabvNwlEIHA.5228@xxxxxxxxxxxxxxxxxxxxxxx
Hello all,

I'm having a problem with some of our staff systems running Outlook 2003 connecting to our Exchange 2007 server. When they add the server name and their username and then click the "Check Name" button, they receive a message that states:

The action could not be completed. The connection to the Microsoft Exchange Server is unavailable. Outlook must be online or connected to complete this action.

I've read several posts that discusses possible solutions to this error and I've tried most of them with no success. The staff systems are in a remote office and not part of the domain (I don't think that should make a difference, but who knows). Also, for the initial connection to the Exchange Server, do I have to have the RPC ports opened through to the Exchange server? I know that after the clients are authenticated we can use HTTPS, but is RPC required to establish the initial connection?

Thanks,

DLN


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