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Article ID: 819971 - Last Review: October 26, 2013 - Revision: 7.0

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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

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When you right-click a contact in the Contact folder, and then click New Message to Contact, a new message is created. The new message has the following incorrect address in the To box:
Display_name </o=Org_Name/ou=Admin_Group/cn=Recipients/cn=Display_name>
The address in the To box should be:


This problem occurs only if the following conditions are true:
  • The e-mail address was imported from a Global Address List into a Personal Address Book.
  • The Personal Address Book was then imported into your Contacts folder.


Service pack information

This problem is corrected in Microsoft Office XP Service Pack 3.

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  ( ) How to obtain the latest Office XP Service Pack

Hotfix information

How to Obtain the Hotfix

This issue is fixed in the Outlook 2002 Hotfix Package 1. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
821890  ( ) Availability of the Outlook 2002 Post-Service Pack 2 Hotfix Package: May 30, 2003

After you install this fix, follow the steps that are listed in the "More Information" section of this article to set the ContactRecipientEmailAddressMask registry key and to activate the fix.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

More information

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. To activate this fix, follow these steps:
  1. Quit Outlook 2002.
  2. Click Start, and then click Run.
  3. In the Open box, type regedit, and then click OK.
  4. Locate, and then click to select the following registry key:
  5. With the preceding key selected, on the Edit menu, point to New, and then click DWORD Value.
  6. Type ContactRecipientEmailAddressMask, and then press ENTER.
  7. Right-click ContactRecipientEmailAddressMask, and then click Modify.
  8. In the Value data box, type use an appropriate value from the table below, and then click OK.
  9. On the File menu, click Exit to quit Registry Editor.
Note The registry entry must be made for each user account on this computer. The following list contains values that the ContactRecipientEmailAddressMask value can be set to turn off anti spoofing for various address types.

Collapse this tableExpand this table
Address TypesHexadecimal Values
x500 1
x400 2
MS Mail4
Lotus Notes 40

Note Setting the value to Off turns off anti spoofing for all address types, not only the ones in the list.

Applies to
  • Microsoft Outlook 2002 Standard Edition
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