Many non-delivery warning messages are logged in the ProgramLog.txt file in Antigen 9.0 for Exchange when you use a third-party connector for Exchange Server

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Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify 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 XP and Windows Vista
SYMPTOMS
When you use a third-party connector for Microsoft Exchange Server, you notice that many warning messages are logged in the ProgramLog.txt file in Microsoft Antigen 9.0 for Exchange. The warning messages resemble the following:
Date (6476-6392), "WARNING: Notification can't be sent to sender Identity_of_Connector, email address: Identity_of_Connector, email address type: Identity_of_Connector."
Note Typically, the ProgramLog.txt file is located in the Antigen installation folder.
CAUSE
These messages are logged when e-mail messages cannot be routed through the third-party connector because of configuration issues.
RESOLUTION
To restrict the number of messages that are logged, apply hotfix 945597. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
945597 Description of Hotfix Rollup 1 for Antigen 9.0 Service Pack 1
Note Before you can install Hotfix Rollup 1 for Antigen 9.0 Service Pack 1, you must have Antigen 9.0 Service Pack 1 installed.

Registry information

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

After you apply the hotfix, the LogUnknownConnector registry entry is available. This registry entry can control the frequency at which the warning messages are logged. The LogUnknownConnector registry entry is available under the following registry subkey:
HKEY_LOCAL_MACHINE\Software\Sybari Software\Antigen for Exchange\


Name: LogUnknownConnector
Value type: DWord
Value data: 0 (default)
By default, the value of the LogUnknownConnector registry entry is 0. When this registry entry is set to 0, a warning message is logged in the ProgramLog.txt file for the first message only. When this registry entry is set to 1, the warning message is logged for every message. This behavior resembles the behavior that is mentioned in the "Symptoms" section.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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Article ID: 947795 - Last Review: 01/14/2015 16:19:46 - Revision: 1.0

Microsoft Antigen for Exchange

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