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Q197398: XCON: MTA Stops Processing Mail with Events 57, 2051 and 1105

Article: Q197398
Product(s): Microsoft Exchange
Version(s): WinNT:5.5
Operating System(s): 
Keyword(s): exc55sp2fix
Last Modified: 28-APR-1999

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The information in this article applies to:

- Microsoft Exchange Server, version 5.5 
-------------------------------------------------------------------------------


SYMPTOMS
========

The Exchange Server Message Transfer agent (MTA) may stop processing mail under
a heavy load. It may also generate the following Event id's in the Windows NT
Application Event log:

  Event ID: 57
  Source: MSExchangeMTA
  Type: Warning
  Category: X.400 Service
  Description: The limit on the number of associations allowed to and from
  entity /O=MICROSOFT/OU=TEST/CN=CONFIGURATION/CN=SERVERS/CN=TEST
  /CN=MICROSOFT MTA has been reached. The limit is 2032. [MTA MAIN BASE 1
  43] (14)

  Event ID: 2051
  Source: MSExchangeMTA
  Type: Error
  Category: Internal processing
  Description: A fatal internal MTA error has occurred. The internal
  directory replication agent (DRA) Dispatcher thread did not execute. If
  this message is logged more that 5 times restart the directory. Contact
  Microsoft Technical Support. An illegal GET from element 00000000
  occurred at offset 1. [BASE OPERATOR 18 110] (16)

  Event ID: 1105
  Source: MSExchangeDS
  Type: Error
  Category: Replication
  Description: The internal directory replication agent (DRA) Dispatcher
  thread did not execute. If this message is logged more that 5 times
  restart the directory.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Exchange Server
version 5.5. For more information, please see the following article in the
Microsoft Knowledge Base:

  Q191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack


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

  Component: Message Transfer Agent (MTA)

  File Name      Version
  -------------------------
  Dbserver.sch   5.5.2448.1
  Dcprods.cat    5.5.2448.1
  Ems_rid.dll    5.5.2448.1
  Emsmta.exe     5.5.2448.1
  Info4log.cfg   5.5.2448.1
  Infodlog.cfg   5.5.2448.1
  Infollog.cfg   5.5.2448.1
  Infotlog.cfg   5.5.2448.1
  Mtacheck.exe   5.5.2448.1
  Mtamsg.dll     5.5.2448.1
  P2.xv2         5.5.2448.1
  X400om.dll     5.5.2448.1
  X400omv1.dll   5.5.2448.1


STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.5.

======================================================================
Keywords          : exc55sp2fix 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : WinNT:5.5
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

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