Routing Engine: StateChangeDelay parameter is non-default
[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]
Topic Last Modified: 2005-11-18
The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to determine whether Simple Mail Transfer Protocol (SMTP) connector routing logic has been modified from its default setting:
If the Exchange Server Analyzer finds that the StateChangeDelay registry key is present and configured with a value greater than 0, a non-default configuration message is displayed.
The StateChangeDelay registry entry is a custom configuration setting for Exchange Server that helps control the interval at which connectors are marked as unavailable and the notifications that occur because of connector and server state change. When StateChangeDelay is set to greater than 0, a server can only be marked as available or unavailable one time in each time period that is set by this value.
This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore the registry if a problem occurs. For information about how to restore the registry, view the "Restore the Registry" Help topic in Regedit.exe or Regedt32.exe.
To revert to the default configuration
Open a registry editor, such as Regedit.exe or Regedt32.exe.
Navigate to: HKLM\System\CurrentControlSet\Services\RESvc\Parameters
Delete the StateChangeDelay registry key.
Close the registry editor.
Restart the IIS Admin Service for the change to take effect.
Before you edit the registry, and for information about how to edit the registry, see Microsoft Knowledge Base article 256986, "Description of the Microsoft Windows Registry" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=256986).