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How to change the number of embedded MIME messages that Outlook 2003 processes before the MIME is dumped to the message body

Support for Office 2003 has ended

Microsoft ended support for Office 2003 on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows registry
INTRODUCTION
This article describes how to change the number of embedded MIME messages that Microsoft Office Outlook 2003 processes before the MIME is dumped to the message body. This functionality is added when you install Microsoft Office 2003 Service Pack 3 (SP3).
MORE INFORMATION
In Office 2003 SP3, a policy key was added. This policy key enables an administrator to change how many nested MIME messages are processed before the MIME is dumped to the message body.

By default, Office 2003 SP3 can process 50 nested attachments. If you use policies, and if you are an administrator, you can change this number.

To do this in the registry, follow these steps.

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
  1. Exit Outlook 2003.
  2. Start Registry Editor. To do this, use the method that is appropriate for the version of Windows that you are running:
    • In Windows Vista, click Startthe Start button, type regedit in the Start Search box, and then press ENTER.

      User Account Control permission If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
    • In Microsoft Windows XP, click Start, click Run, type regedit in the Open box, and then click OK.
  3. Locate and then click one of the following registry keys:
    HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\11.0\Outlook\Options\Mail
    HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Options\Mail
  4. After you select the key that is specified in step 3, point to New on the Edit menu, and then click DWORD Value.
  5. Type EmbeddedMessageLimit, and then press ENTER.
  6. Right-click EmbeddedMessageLimit, and then click Modify.
  7. In the Value data box, type a positive integer for the number of messages that you want to be processed before the MIME is dumped to the message body, and then click OK.
  8. On the File menu, click Exit to exit Registry Editor.
For more information about how to obtain the latest Office 2003 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
870924 How to obtain the latest service pack for Office 2003
outlook2003 outlook2k3 outlook11 ol2003 ol2k3 ol11
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Article ID: 938817 - Last Review: 09/18/2007 19:07:43 - Revision: 1.2

Microsoft Office 2003 Service Pack 3, Microsoft Office Outlook 2003

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