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Outlook is trying to retrieve data from the exchange server in a segregated domain

Posted on 2009-07-02
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Last Modified: 2012-05-07
Hi,
We have 2 segregated networks, network A has windows 2003 domain and exchange 2003, network B is a windows 2000 domain and it is connected with a NIC to the exchange server so the clients on it can access exchange, no trust relationship between the 2 networks, all users on B network has mailboxes and user names on the A domain.

When clients open outlook 2003 on the B network they start getting their emails but it is very slow and there is a message pop up stating outlook is trying to retrieve data from the exchange server.. when I check which GC the outlook clients are pointing to on the B network, I see it is the exchange server, which is not a GC/DC at all, while the outlook clients on the A network are pointing to the correct one.

Also when I press ctrl and right click on the outlook icon in the task bar and go to connection status I see failing in the directory part.

We had no issues before we upgrade to exchange 2003.

Thank you...Shando..
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Question by:Shando1971
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by:EndureKona
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The segment networks go over a WAN link?

This sounds slightly different to the typical issue but the usually fix is to hard code the NIC on the Exchange server to that of the network speed.    

Typical procedure I take is update the NIC drivers on the Exchange box and go into the config and lock it down to 1GB if a GB network or 100MB Full Duplex.    If possible I take another step on the switch and lock that port to the speed of the network.    At times servers have issues with the auto negoitation...    


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by:Shando1971
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No it is connected straight to the NIC on the exchange server.

I think there is a way of forcing the clients on the B network and/or adding the GC from the A network to the DNS on the B network but I don't know how. Unless you can think of something else.
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by:Shando1971
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I resolved the issue, can you please cancel the pending for deletion so I can post it for others?
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Shando1971 earned 0 total points
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Just follow the Microsoft article http://technet.microsoft.com/en-us/library/aa996069(EXCHG.65).aspx
I was doing everything as in the article except the "mutually authenticate the session when connecting with ssl" once I checked it and added the value and I also removed the "/exchange" from the mail.mydomain.com/exchange in the "use this URL to connect to my proxy server for exchange" in the exchange proxy setting>connection setting, everything worked great. I just want to mention that there are some articles out there stating to use the same address you use to connect to OWA and as you can see above it is not true.
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by:EndureKona
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did you test locking down the NICs?
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