Microsoft KB Archive/305572

= You cannot receive new e-mail notifications in environments that use the Network Address Translation in Outlook 2002 =

Article ID: 305572

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 Q305572





SYMPTOMS
If you use Network Address Translation (NAT), you may not receive new e-mail notifications in Outlook 2002.



CAUSE
This problem can occur in a NAT environment because Outlook 2002 never receives the UDP (Universal Datagram Packets) that the Microsoft Exchange Server sends, and you cannot route the UDP packets to a computer that is running Outlook 2002.

The computer that is running Outlook 2002 returns to polling the Exchange Server for new e-mail messages by using the Remote Procedure Call (RPC) to work around this problem. However, a logic error exists with the Exchange Server and it does not reply to the polling request.



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

To resolve this problem, use the following two methods to configure Outlook 2002 to use polling instead of UDP to receive new e-mail notifications:
 * Apply the associated hotfix to the computer that is running Outlook 2002.
 * Manually add registry entries.

How to Use the Hotfix
A supported fix is now available from Microsoft, but it is only intended to correct the problem described in this article and should be applied only to systems experiencing this specific problem. This fix may receive additional testing at a later time, to further ensure product quality. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Product Name service pack that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, please go to the following address on the World Wide Web:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are normally incurred for support calls may be canceled, if a Microsoft Support Professional determines that a specific update will resolve your problem. Normal support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English-language version of this fix should have the following file or later:  Date        Time        Version     Size       File name --   07/11/2001  1:02:23pm  10.0.3103.0  538,952    Emsmdb32.dll 07/11/2001 1:02:24pm  10.0.2915.0  1,966,080  Outllib.dll The fix is also available for the following language(s): German.

How to Manually Add Registry Entries
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 add the registry values to the computer that is running Outlook 2002, follow these steps:  Click Start, and then click Run. In the Open box, type Regedt32.exe, and then click OK. Locate the following key in the registry:

HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\

 On the Edit menu, click Add Key, and then add the following registry key:Key Name: RPC

Class: None

 Click OK.</li> Locate the following key in the registry:

HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\RPC\

</li> On the Edit menu, click Add Value, and then add the following registry value:Value Name: ForcePolling

Data Type: REG_DWORD

Value: 1

</li> Locate the following key in the registry:

HKEY_CURRENT_USER\Software\Policies\Microsoft\

</li> On the Edit menu, click Add Key, and then add the following registry key:Key Name: Office

Class: None

</li> Locate the following key in the registry:

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\

</li> On the Edit menu, click Add Key, and then add the following registry key:Key Name: 10.0

Class: None

</li> Locate the following key in the registry:

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\10.0\

</li> On the Edit menu, click Add Key, and then add the following registry key:Key Name: Outlook

Class: None

</li> Locate the following key in the registry:

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\10.0\Outlook\

</li> On the Edit menu, click Add Key, and then add the following registry key:Key Name: RPC

Class: None

</li> Locate the following key in the registry:

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\10.0\Outlook\RPC\

</li> On the Edit menu, click Add Value, and then add the following registry value:Value Name: ForcePolling

Data Type: REG_DWORD

Value: 1

</li> Close the Registry Editor</li> Restart the computer.</li></ol>

<div class="status_section">

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 1.

<div class="moreinformation_section">

MORE INFORMATION
Outlook 2002 uses both UDP and polling to notify you of new e-mail messages.

With UDP, Outlook 2002 sends the server the client's Internet Protocol (IP) address and notifies the server to send the UDP when there are e-mail messages waiting on the server.

The polling mechanism occurs when Outlook 2002 starts a thread that requests information from the server every 60 seconds with the RPC, by default, for any outstanding e-mail messages.

The default preference for e-mail notification in Outlook 2002 is UDP, and if that fails, then it uses polling. The previously mentioned registry value defines whether or not to use polling as the default for new e-mail notification. The value of 1 indicates that polling is used as the default by Outlook 2002 and that UDP will not be used. The default polling time is 60 seconds and is set at the Exchange Server.

Additional query words: email

Keywords: kbbug kbfix kbqfe kbemail kbofficexpsp1fix kbreceivemail kbhotfixserver KB305572

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