A recipient may not receive e-mail messages from external users when you apply Exchange 2000 Server version 6.0.6617.70 on the Exchange 2000 Server cluster server (903674)

SYMPTOMS

Consider the following scenario. You are running Microsoft Exchange 2000 Server and Microsoft Exchange Server version 5.5 in a mixed environment. You apply Microsoft Exchange 2000 Server version 6.0.6617.70 on the Exchange 2000 Server cluster server.

In this situation, a recipient may not receive e-mail messages that are from external users when the following conditions are true:

The e-mail messages come from external users through Exchange Server 5.5 Internet Mail Connector (IMC).
The e-mail message flow uses the X.400 protocol to connect the Exchange Server 5.5 and Exchange 2000 Server message transfer agent (MTA).
The mailbox of the recipient is stored in Exchange 2000 Server.

RESOLUTION

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft Exchange 2000 Server service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart the computer after you apply this software update.

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 tool in Control Panel.

File name	File version	File size	Date	Time	Platform
Mdbmsg.dll	6.0.6617.79	2,342,912	16-Jul-2005	06:42	x86
Store.exe	6.0.6617.79	4,710,400	18-Jul-2005	22:34	x86

Note Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 3 (SP3).

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

301378 How to obtain the latest Exchange 2000 Server service pack