Article ID: 812273 - View products that this article applies to.
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When you remove the mailboxes from, and then decommission an Exchange Server 5.5-based server, you may experience one or more of the following behaviors:
This issue may occur if you decommission an Exchange Server 5.5-based server, but the changes have not replicated throughout the network.
To resolve this issue, make sure that all Exchange-related roles are removed from the server. Remove the server from the site, and then permit enough time for the changes to be replicated throughout the organization.
Microsoft Outlook retains a list of servers that it cannot connect to. When Outlook cannot connect to a server by using a Remote Procedure Call (RPC), it adds that server to the list. Even when Outlook is not running as a foreground program, it periodically tries to contact the servers in the "dead server list" to see if they are available again.
For additional information about Exchange Server 5.5 interoperability, view the white papers at the following Microsoft Web site:
Article ID: 812273 - Last Review: October 26, 2013 - Revision: 3.3