Microsoft KB Archive/889918

= Performance issues that are caused by the JunkMailImportLists registry value in Outlook 2003 =

PSS ID Number: 889918

Article Last Modified on 12/9/2004

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The information in this article applies to:


 * Microsoft Office Outlook 2003
 * Microsoft Exchange Server 2003 Enterprise Edition
 * Microsoft Exchange Server 2003 Standard Edition

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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



SYMPTOMS
When you use Microsoft Office Outlook 2003 to connect to a Microsoft Exchange Server, you may receive the following message, where  is the name of your Microsoft Exchange server: Outlook is trying to retrieve data from the Microsoft Exchange Server



CAUSE
This problem may occur if one or more users in your organization has the following registry data applied to their Outlook 2003 client systems:

Registry Key: KEY_CURRENT_USER\Software\Policies\Microsoft\Office\11.0\Outlook\Options\Mail

Value Name: JunkMailImportLists

Value Type: REG_DWORD

Value Data: 1



MORE INFORMATION
Because of the way Outlook 2003 uses the JunkMailImportLists registry value, the code that is used to import junk e-mail lists is called when both of the following conditions are true:
 * The JunkMailImportLists registry value is set to 1.
 * The hidden junk e-mail rule in your mailbox is updated. For example, the hidden junk e-mail rule is updated when you add an SMTP address to your Safe Senders List.

Note When Microsoft Outlook starts, the registry is checked to determine whether the JumkMailImportLists registry value is present.

Every time an import occurs, Outlook 2003 updates the junk e-mail rule. This action causes additional remote procedure call (RPC) requests to the server. If the JunkMailImportLists registry value is set to 1, Outlook 2003 will import the list and update the junk e-mail rule. However, there is no comparison to see if the list was changed. This can cause excessive RPC requests.



RESOLUTION
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.

The JunkMailImportLists registry value should never be put under the \Policies hive in the registry because the value will never change. The JunkMailImportLists registry value will always be set to the value specified by the policy. Instead, the JunkMailImportLists registry value belongs under the following registry key:

When the JunkMailImportLists registry value is not under the \Policies hive, the value is automatically changed from 1 to 0 when Outlook 2003 starts, and it runs the code to import the junk e-mail lists. This way, the import code is only run one time.

To resolve this problem, disable the policy that is configured for the JunkMailImportLists registry value. Configure the client registry data as follows:  Quit Outlook 2003. Click Start, click Run, type regedit in the Open box, and then click OK. Locate and then select the following registry key:

HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Options\Mail

 After you select the key that is specified in step 3, point to New on the Edit menu, and then click DWORD Value. Type JunkMailImportLists, and then press ENTER. Right-click JunkMailImportLists, and then click Modify.</li> In the Value data box, type 1, and then click OK.</li> On the File menu, click Exit to quit Registry Editor.</li></ol>

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MORE INFORMATION
To deploy the Blocked Senders List, the Safe Senders List, and the Safe Recipient List to users in your organization, use the information in the &quot;Creating and deploying the Junk E-mail Filter lists&quot; section of the following Microsoft Web site:

http://www.microsoft.com/office/ork/2003/three/ch7/OutB07.htm#sub_1

Additional query words: OL2003

Keywords: KB889918

Technology: kbExchangeSearch kbExchangeServ2003Ent kbExchangeServ2003Search kbExchangeServ2003St kbOutlook2003 kbOutlook2003Search kbOutlookSearch

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