Exchange Server 2003 does not expose the ability to obtain a list of RFC 2821 recipients to enable the Computational Proof functionality to work correctly

Microsoft Exchange Server 2003 Service Pack 2 (SP2) includes Intelligent Message Filter (IMF) version 2. IMF version 2 uses the SmartScreen technology. IMF version 2 also provides a framework to enable the Computational Proof functionality.

For the Computational Proof functionality to work correctly and for the proof to be validated successfully, access to a list of RFC 2821 recipients is needed. However, Microsoft Exchange Server 2003 does not expose the ability to obtain a list of RFC 2821 recipients. Additionally, the Computation Proof functionality is treated as being invalid.

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

Before you apply this hotfix, you must apply the Microsoft Windows Server 2003 hotfix that is described in the following article in the Microsoft Knowledge Base:

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfix.

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.

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

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