Microsoft KB Archive/318120

= OL2002: How to Turn Off the Security Feature That Displays the Full Address for Unresolved Recipient Names =

Article ID: 318120

Article Last Modified on 7/28/2006

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APPLIES TO


 * Microsoft Outlook 2002 Standard Edition

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This article was previously published under Q318120



IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
There is a new security feature in Outlook 2002 that displays the full address of unresolved recipient names in angle brackets (<>) in the To and Cc boxes. If you receive a large number of messages from X.400 unresolved senders, you may want to turn off (disable) this feature.



RESOLUTION
To resolve this problem, obtain the latest service pack for Microsoft Office XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

307841 OFFXP: How to Obtain the Latest Office XP Service Pack

The following registry key must be applied in order for this fix to work.

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

 Start Registry Editor (Regedt32.exe). Locate and then click the following key in the registry:

HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Options\Mail

 On the Edit menu, click Add Value, and then add the following registry value:

Value name: X400NoSpoof

Data type: REG_DWORD

Radix: Decimal Value data: 1

 Quit Registry Editor.

Note that a value of 1 turns on (enables) this processing, and a value of 0 turns off this processing.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Office XP Service Pack 2 (SP-2).

Additional query words: xclnok

Keywords: kbbug kbfix kbqfe kbhotfixserver KB318120

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