You are prompted for your credentials three times and you receive an error message when you use the Outlook Anywhere feature to connect to an Exchange Server 2007 Service Pack 1–based server that is running Windows Server 2008
When you use the Outlook Anywhere feature to connect to an Exchange Server 2007 Service Pack 1–based server that is running Windows Server 2008, you are prompted for your credentials three times. Additionally, you may receive the following error message:
The connection to Microsoft Exchange is unavailable. Microsoft Outlook must be online or connected to complete this action.
Windows Server 2008 prefers to use IPv6 protocol instead of the IPv4 protocol. The Exchange 2007 server does not listen to some specific ports on IPv6 that are used for Outlook Anywhere. Therefore, this problem occurs.
To resolve this problem, download Update Rollup 4 for Exchange Server 2007 Service Pack 1. Then, install the update on the Exchange server. For more information about Update Rollup 4 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic:
For more information about Outlook Anywhere, visit the following Microsoft Web site:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Outlook Anywhere Outlook Longhorn
Article ID: 950138 - Last Review: 10/07/2008 17:55:28 - Revision: 3.1
Microsoft Exchange Server 2007 Service Pack 1
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