Microsoft KB Archive/925397

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Article ID: 925397

Article Last Modified on 10/25/2007



APPLIES TO

  • Microsoft Exchange Server 2003 Service Pack 2, when used with:
    • Microsoft Exchange Server 2003 Standard Edition
    • Microsoft Exchange Server 2003 Enterprise Edition




SYMPTOMS

Consider the following scenario. In Microsoft Exchange Server 2003 Service Pack 2 (SP2), you create two or more user accounts. The aliases for these user accounts contain a number sign (#). For example, you create the userA# account and the userB# account. Then, you create the Exchange mailboxes for these users. In this scenario, the LegacyExchangeDN attribute for each of these users may be the same. This behavior occurs if the following conditions are true:

  • The Recipient Update service is running on an Exchange Server 2003 SP2-based computer in a multiprocessor environment.
  • You create two or more Exchange mailboxes at the same time. For example, you select a group of users in Active Directory Users and Computers. You right-click Exchange Tasks and then click Create Mailbox.

Note Exchange Server 2003 disallows two or more users to have the same LegacyExchangeDN attribute. Therefore, e-mail messages that are sent to these mailboxes will not be delivered.

CAUSE

This problem occurs because the CN attribute of the user account contains invalid LegacyDN characters. Therefore, Exchange Server 2003 appends a random number to the LegacyExchangeDN attribute to identify the user account. In a multiprocessor environment, the same random number may be used for different users. Therefore, the LegacyExchangeDN attribute for these user accounts may be the same.

RESOLUTION

Hotfix information

A supported hotfix is now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

Prerequisites

Because of file dependencies, this hotfix requires Exchange Server 2003 SP2.

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


Also, the Recipient Update service must be running when you apply this hotfix.

Restart requirement

You do not have to restart the computer after you apply this hotfix. However, you must restart the following services after you apply this hotfix:

  • The Microsoft Exchange Information Store service
  • The Microsoft Exchange MTA Stacks service
  • The Microsoft Exchange System Attendant service
  • The Microsoft Exchange Management service
  • The Microsoft Search service
  • The Simple Mail Transfer Protocol (SMTP) service
  • The Microsoft Exchange Routing Engine service
  • The Network News Transfer Protocol (NNTP) service
  • The HTTP SSL service
  • The IIS Admin service

Hotfix replacement information

This hotfix does not replace any other software updates.

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 item in Control Panel.

File name File version File size Date Time Platform
Cdoexm.dll 6.5.7651.53 2,867,200 03-Oct-2006 17:36 x86
Exadmin.dll 6.5.7651.53 21,939,712 03-Oct-2006 02:33 x86
Exmgmt.exe 6.5.7651.53 3,218,432 03-Oct-2006 17:37 x86
Exosal.dll 6.5.7651.53 70,144 03-Oct-2006 17:35 x86
Exsetdata.dll 6.5.7651.53 3,714,048 03-Oct-2006 16:50 x86
Mad.exe 6.5.7651.53 8,925,696 03-Oct-2006 17:37 x86
Maildsmx.dll 6.5.7651.53 14,647,296 03-Oct-2006 17:34 x86
Mdbmsg.dll 6.5.7651.53 3,375,104 03-Oct-2006 16:50 x86
Store.exe 6.5.7651.53 5,257,216 03-Oct-2006 17:38 x86


STATUS

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

MORE INFORMATION

For more information, 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


Keywords: kbbug kbfix kbqfe kbpubtypekc kbexpertiseinter kbhotfixserver KB925397