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Article ID: 271591 - Last Review: October 21, 2013 - Revision: 4.2

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SYMPTOMS

When third-party antivirus programs that use the Exchange Antivirus API are running on a server with the Internet Mail Service, messages with large attachments or compression percentage are directed to the Internet Mail Service virtual Bad folder. This behavior most frequently occurs when multiple Internet Mail Service servers exist within the same Exchange Server site.

CAUSE

The ecVirusScanInProgress return code is being checked only once. If Exchange Server gets the return code again when the information store retries to open the same attachment, the return code is mapped to Mapi_call_failed, which causes the Internet Mail Service to move the mail to the Bad folder.

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
191914  (http://support.microsoft.com/kb/191914/EN-US/ ) XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack
The following files are available for download from the Microsoft Download Center:
x86:
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Download Q248838engi.exe now (http://www.microsoft.com/downloads/release.asp?ReleaseID=25443)
Alpha:
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Download Q248838enga.exe now (http://www.microsoft.com/downloads/release.asp?ReleaseID=25444)
For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591  (http://support.microsoft.com/kb/119591/EN-US/ ) How to Obtain Microsoft Support Files from Online Services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

STATUS

Microsoft has confirmed that this is a problem in Microsoft Exchange Server, 5.5 Service Pack 3 (SP3). This problem was first corrected in Exchange Server 5.5 Service Pack 4.

APPLIES TO
  • Microsoft Exchange Server 5.5 Service Pack 3
Keywords: 
kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbexchange550presp4fix kbexchange550sp4fix kbfix kbgraphxlinkcritical kbqfe KB271591
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