IMAP4 clients are disconnected when they try to retrieve a message by using the FETCH BODYSTRUCTURE IMAP4 command in Exchange Server 2003

When IMAP4 clients that connect through a front-end server that is running Microsoft Exchange Server 2003 try to retrieve a message by using the FETCH BODYSTRUCTURE IMAP4 command, the clients are disconnected.

This problem may occur when the message contains corrupted or malformed MIME code.

Hotfix information

Apply this hotfix on the back-end Exchange Server 2003 server. 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

Because of file dependencies, you must have Microsoft Exchange Server 2003 Service Pack 1 (SP1) installed to apply this hotfix.

Restart requirement

You must restart Exchange Server 2003 and the Internet Information Services service on the back-end server after you apply this hotfix.

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 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.

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: