Microsoft KB Archive/163080

= XFOR: Event 4081 Occurs When IMC Encounters Invalid Code Page =

Article ID: 163080

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q163080



SYMPTOMS
The following event may be logged in the Application Event Log when the Microsoft Exchange Server Internet Mail Connector (IMC) receives an inbound SMTP mail message:   Event ID: 4081 Source: MSExchangeIMC Type: Warning Category: Content Conversion Originator: Subject: Time: Conversion failed while processing file d:\exchsrvr\imcdata\in\. The IMC administrator may also receive the following mail notification:   From: System Administrator Subject: Notification: Inbound Mail Failure - The message conversion failed.

The message that caused this notification was:

The recipient of the message will receive the following mail notification:   The Internet Mail Connector received a message that could not be   processed. View the original content by opening the attached message.



CAUSE
This error may occur when the inbound SMTP mail message contains a reference to a character set that is not installed on the Microsoft Exchange Server. To verify this as the source of the problem, look for following field in the SMTP header of the message (there may be more than one):   Content-Type: ; charset= Verify that the Microsoft Exchange Server computer has the proper code page installed for the character set referenced by charset.



RESOLUTION
To avoid receiving the content conversion error stated above, install the proper code page for the character set referenced in the mail message.

For additional information on how to add code pages to a Windows NT Server using the Control Panel, International, Language applet, please see the following article in the Microsoft Knowledge Base:

151701 How to Manually Add Code Pages for Mixed Languages

Keywords: kbprb kbtshoot kbusage KB163080

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