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Q163020: XFOR: MSMail Connector NDR Message with Event ID 2117

Article: Q163020
Product(s): Microsoft Exchange
Version(s): 4.0,5.0
Operating System(s): 
Keyword(s): kbusage exc4 exc5 exc55
Last Modified: 20-FEB-2002

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The information in this article applies to:

- Microsoft Exchange Server, versions 4.0, 5.0 
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SYMPTOMS
========

You may receive the following non-delivery report (NDR) from the system
administrator when you send a message to a Microsoft Mail 3.x recipient:

  [008] Failure delivering user mail due to mailbag contention.
  Mail item was not delivered to:

When you look at the Windows NT Event Viewer, the following Event IDs are present
in the Application Log:

  Event 2010     MSExchangeMSMI    Debug Data
  Disk error encountered while inserting data into 00000004.MBG from
  00004950.

  Event 2117     MSExchangeMSMI    Warning

  Non delivery report generated.

  From: MICROSOFT/NETPO/USER
  Subject: Message from User

  [008] Failure delivering user mail due to mailbag contention.
  Mail item was not delivered to:

CAUSE
=====

This condition usually means that the .mbg (mailbag) file on the Exchange
Connector postoffice is over the 4096 record limit.

There is a 4096 record limit built into the .mbg file in Microsoft Mail and also
on the Exchange Connector postoffice.

The Microsoft Exchange PC-MTA service may stop and the Microsoft Mail Connector
Interchange service (MSMI) continues to move mail to the .mbg file for the
downstream Microsoft Mail postoffice. Once this reaches 4096 messages, the MSMI
returns an NDR for all new messages.

RESOLUTION
==========

To resolve this problem:

- Check to make sure the PC-MTA service is running on the Exchange Server
  computer.

Additional query words: 4k 400 bytes msmail

======================================================================
Keywords          : kbusage exc4 exc5 exc55 
Technology        : kbExchangeSearch kbExchange500 kbExchange400 kbZNotKeyword2
Version           : :4.0,5.0
Issue type        : kbprb

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