You cannot receive a new e-mail notifications in Outlook 2000 when you use the Network Address Translation (304849)
The information in this article applies to:
This article was previously published under Q304849 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
For a Microsoft Outlook 2002 version of this article,
see
305572. SYMPTOMS If you use Network Address Translation (NAT), you may not
see new e-mail or receive notifications for new e-mail in Outlook 2000.
CAUSE This problem can occur in a NAT environment because Outlook
2000 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 2000.
The computer that is running Outlook 2000
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, use the following two methods to
configure Outlook 2000 to use polling instead of UDP to receive new e-mail
notifications:
- Apply the associated hotfix to the computer that is running
Outlook 2000.
- Manually add registry entries.
How to Use the Hotfix To resolve this problem, obtain the latest
service pack for Microsoft Office 2000. For additional information, click the
following article number to view the article in the Microsoft Knowledge Base: 276367 OFF2000: How to Obtain the Latest Office 2000 Service Pack IMPORTANT: Before you install Microsoft Office 2000 Service Pack 3 (SP-3),
you must have Microsoft Office 2000 Service Release 1/1a (SR-1/SR-1a) installed
first. To obtain SR-1/SR-1a, click the article number below to view the article
in the Microsoft Knowledge Base:
245025 OFF2000: How to Obtain and Install Microsoft Office 2000 Service Release 1/1a (SR-1/SR-1a)
The English-language version of this fix
should have the following file attributes or later:
Date Time Version Size File name
------------------------------------------------------
07/06/2001 10:48:50pm 5.5.3160.0 594,192 Emsmdb32.dll
07/06/2001 10:32:36pm 9.0.0.5505 5,328,946 Outllib.dll
The fix is also available for the following language(s): German,
Italian
How to Manually Add Registry EntriesWARNING: 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. NOTE: If Office 2000 (SP-3) has already been installed, you do not
have to install the fix. If Office 2000 (SP-3) has already been installed,
follow these steps to add the registry values to apply the settings.
To add the registry values to the computer that is running Outlook 2000, 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\9.0\Outlook\ - On the Edit menu, click Add Key, and then add the following registry key:
- Click OK.
- Locate the following key in the registry:
HKEY_CURRENT_USER\Software\Microsoft\Office\9.0\Outlook\RPC\ - On the Edit menu, click Add Value, and then add the following registry value:
Value Name: ForcePolling Data Type: REG_DWORD Value: 1 - Locate the following key in the registry:
HKEY_CURRENT_USER\Software\Policies\Microsoft\ - On the Edit menu, click Add Key, and then add the following registry key:
Key Name: Office Class: None - Locate the following key in the registry:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\ - On the Edit menu, click Add Key, and then add the following registry key:
- Locate the following key in the registry:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\9.0\ - On the Edit menu, click Add Key, and then add the following registry key:
Key Name: Outlook Class: None - Locate the following key in the registry:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\9.0\Outlook\ - On the Edit menu, click Add Key, and then add the following registry key:
- Locate the following key in the registry:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\9.0\Outlook\RPC\ - On the Edit menu, click Add Value, and then add the following registry value:
Value Name: ForcePolling Data Type: REG_DWORD Value: 1 - Quit Registry Editor
- Restart the computer.
STATUSMicrosoft
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 2000 Service Pack 3 (SP-3).MORE INFORMATION Outlook 2000 uses both UDP and polling to notify you of new
e-mail messages.
With UDP, Outlook 2000 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 2000 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 2000 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 2000 and
that UDP will not be used. The default polling time is 60 seconds and is set at
the Exchange Server.
Modification Type: | Minor | Last Reviewed: | 9/23/2005 |
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Keywords: | kbHotfixServer kbQFE kbfunctions kbreceivemail kbemail kbBug kbOffice2000SP3Fix kbfix KB304849 |
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