XFOR: Messages to cc:Mail with Headers That Are Larger Than 4 KB Generate NDRs (287659)


The information in this article applies to:

  • Microsoft Exchange 2000 Server
This article was previously published under Q287659
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

Messages to Lotus cc:Mail that contain headers that are larger than 4 kilobytes (KBs) may generate non-delivery reports (NDRs).

RESOLUTION

To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack

The English version of this fix should have the following file attributes or later:

Component: Microsoft Exchange Connector for Lotus cc:Mail

File nameVersion
Ccmc.exe6.0.4514.00

STATUS

Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server. This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 1.

MORE INFORMATION

For additional information about a related issue, click the article number below to view the article in the Microsoft Knowledge Base:

266711 XFOR: Connector for cc:Mail Cannot Route Mail with Message Headers Larger Than 4 KB

With the Lotus cc:Mail Import/Export utility version 8.2x and later, the message header limit is raised to 160 KB (163,840 bytes). To make the Connector for cc:Mail recognize the new message header limitation, you must perform the following steps. 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.
  1. Ensure that the newer versions (8.2x or later) of the Lotus cc:Mail Import/Export utility is in place on the Exchange Server computer that is running the Connector for cc:Mail. 2.
  2. Add the following registry key:
    1. Start Registry Editor (Regedt32.exe).
    2. Locate the following key in the registry:

      HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeCCMC\Parameters

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

      Value Name: Max Address Buffer Size
      Data Type: REG_DWORD
      Radix: Hexadecimal
      Value: 28000

    4. Quit Registry Editor
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Modification Type:MajorLast Reviewed:4/8/2004
Keywords:kbbug kbExchange2000preSP1fix kbfix kbQFE KB287659 kbAudITPRO
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