You cannot use Outlook Express to download an e-mail message, and you receive an event message in the Application log

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Article ID: 892397 - View products that this article applies to.
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SYMPTOMS

You cannot use Outlook Express to download an e-mail message, and you receive an event message in the Application log that is similar to the following:
Event Type:	Error
Event Source:	IMAP4SVC  
Event Category:	None
Event ID:	1023
Description:
Error 0x8004050a occurred while rendering message <message id> for download for user <user E-mail>.  

CAUSE

The e-mail message contains an embedded Secure/Multipurpose Internet Mail Extension (S/MIME) digital signature. The digital signature is obtained from Microsoft Exchange Server 2003 Service Pack 1. The event that is logged in the Application log occurs when you use Post Office Protocol version 3 (POP3) or Internet Message Access Protocol (IMAP) version 4rev1 (IMAP4) to download the message in Outlook Express.

Note This issue only occurs when a third-party virus scan software is enabled in Exchange Server 2003 Service Pack 1.

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Exchange Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
836993 How to obtain the latest service packs for Exchange Server 2003

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

Exchange Server 2003 Service Pack 1 For more information, click the following article number to view the article in the Microsoft Knowledge Base:
836993 How to obtain the latest service packs for Exchange Server 2003

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   25-Feb-2005  02:33  6.5.7232.86     3,257,856  Mdbmsg.dll       
   25-Feb-2005  03:07  6.5.7232.86     5,166,592  Store.exe        

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

This problem was first corrected in Exchange Server 2003 Service Pack 2.

MORE INFORMATION

You can access the e-mail message in Microsoft Outlook. with Messaging Application Programming Interface (MAPI) or Microsoft Outlook Web Access (OWA). For more information about this hotfix, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
817903 New naming schema for Exchange Server software update packages

Properties

Article ID: 892397 - Last Review: October 9, 2011 - Revision: 6.0
APPLIES TO
  • Microsoft Exchange Server 2003 Service Pack 1
  • Microsoft Outlook Express 6.0
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbexchpopimapnntp kbfix kbbug KB892397

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