Update to permit the caching of incoming SMTP messages as IPM.Note in Exchange Server 2003

When you send Simple Mail Transfer Protocol (SMTP) mail to a Microsoft Exchange 2000 Server or a Microsoft Exchange Server 2003 public folder, the message class is IPM.Post. In Microsoft Exchange Server 5.5, the message class of a message that is sent to a public folder is IPM.Note. Therefore, if you have a message-archiving system where the e-mail messages must be stored without being changed or converted, you may not be able to archive messages from the public folder. This article describes an update that you can use to configure the setting of the PR_MESSAGE_CLASS attribute of SMTP messages that are sent to public folders as IPM.Note instead of as IPM.Post.

Note "SMTP mail" refers to mail that is not from a MAPI source.

Cumulative rollup information

To resolve this problem, obtain the Exchange 2003 Server Post-RTM store rollup. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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: 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

No prerequisites are required.

Restart requirement

You do not have to restart your 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.

Hotfix installation information

After you install this update, the message class of incoming messages to public folders may be changed to IPM.Note (instead of IPM.Post). You can configure this new setting by creating the "Incoming defaults to IPM.Note" registry value in the following registry subkey:Important This value name is case-sensitive. The default behavior without the registry key is that incoming messages appear as IPM.Post. If you set the registry value to 0 (zero), the default behavior continues, and incoming messages appear as IPM.Post. If you set the registry value to 1, the behavior changes, and new SMTP mail messages from a non-MAPI source appear as IPM.Note.

To enable this functionality, you must configure these registry settings on all Exchange servers that host public folders. You do not have to configure these registry settings on Exchange servers that do not host public folders. Additionally, you must configure these registry settings for each public folder database on the particular server where you want to enable this functionality.

After you make these registry changes, you must restart the Microsoft Exchange Information Store service to enable this new functionality.

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

For more information about terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base: For more information, click the following article number to view the article in the Microsoft Knowledge Base: