This article was previously published under Q277872
After you configure the delivery restrictions on a connector by using Microsoft Exchange 2000 Server or Microsoft Exchange Server 2003, the restriction settings may not be applied. In Exchange 2000, the following event ID will also be generated:
Description: Connector restrictions (by the group or by the user) are present in the organization. However, restriction checking is disabled. Set the registry value HKLM\SYSTEM\CurrentControlSet\Services\RESvc\Parameters\CheckConnectorRestrictions to 1 (DWORD) and restart resvc and smtpsvc to enable restriction checking on local machine.
If you need to apply a distribution list-based restriction to a connector, you must manually enable the checking process for these restrictions. Restriction checking is controlled by a registry key that must be set on the Exchange bridgehead that is the source for the connector that is being checked. If you specify a restriction, but do not create the registry key, the restriction is not checked.
Connector restriction checking is turned off by default because it can significantly affect performance to expand distribution groups and check the restrictions for each message that passes through the system. If possible, turn on this setting on where it is necessary (for example, on the bridgehead server for the restricted connector).
To resolve this problem set the registry value CheckConnectorRestrictions to 1 (DWORD) and restart resvc and smtpsvc to enable restriction checking on local machine. To have us set the CheckConnectorRestrictions value for you, go to the "Fix it for me" section. To fix this problem yourself, go to the "Let me fix it myself" section.
Fix it for me
To verify and fix the registry settings automatically, click the Fix this problem link. Click Run in the File Download dialog box, and follow the steps in this wizard.
Note this wizard may be in English only; however, the automatic fix also works for other language versions of Windows.
Note If you are not on the computer that has the problem, you can save the automatic fix to a flash drive or to a CD, and then you can run it on the computer that has the problem.
Let me fix it myself
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows