Microsoft KB Archive/822105

= Messages are not delivered and NDRs are incorrectly generated when you send a message to many recipients in Exchange Server 2003 on a Windows Server 2003-based system =

Article ID: 822105

Article Last Modified on 7/24/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise x64 Edition

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SYMPTOMS
If you are running Microsoft Exchange Server 2003 on a Microsoft Windows Server 2003-based computer, and Exchange Server processes a message that has many recipients, the message is delivered to only some of the intended recipients. Exchange Server generates non-delivery reports (NDRs) for the other recipients. This issue occurs even if you resend the message.



CAUSE
This problem may occur if the following conditions are true:
 * The Simple Mail Transfer Protocol (SMTP) service in Windows Server 2003 uses pipelining to send a message that has many different recipients to another Exchange server that supports pipelining.

Note By default, pipelining is used when Exchange servers communicate with other Exchange servers.
 * The number of recipients that is specified in the message exceeds the maximum recipient limit that is specified on the receiving Exchange server.

In this scenario, the SMTP service incorrectly tracks the number of recipients who receive the &quot;error 552&quot; error message. This error message indicates that the maximum number of recipients on the receiving Exchange server has been exceeded. Therefore, NDRs are incorrectly generated for some of the recipients of the message.



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:

http://go.microsoft.com/?linkid=6294451

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:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
No prerequisites are required.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later) 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.

Windows Server 2003
Date        Time   Version      Size     File name - 02-Jun-2003 09:57  6.0.3790.47  456,192  Smtpsvc.dll

Windows Server 2003, 64-Bit Edition
Date        Time   Version      Size       File name - 02-Jun-2003 09:17  6.0.3790.47  1,174,528  Smtpsvc.dll  IA-64



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information about standard terminology that is used to describe Microsoft software updates, 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

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwinserv2003presp1fix KB822105

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