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Microsoft KB Archive/170007

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Knowledge Base

XCON: 9224 Sockets Error 10053 When Connecting to a Retix 1.41 Message Transfer Agent

Article ID: 170007

Article Last Modified on 10/28/2006


  • Microsoft Exchange Server 4.0 Standard Edition
  • Microsoft Exchange Server 5.0 Standard Edition
  • Microsoft Exchange Server 5.5 Standard Edition

This article was previously published under Q170007


When transferring messages between a Retix 1.41 Message Transfer Agent (MTA) and the Microsoft Exchange MTA, the following error may be logged in the Windows NT Event Viewer Application log.

   NMI9224: Internal Operating System Error;
   severity 12 (BASE IL TP4 DRIVER (13) Proc 272)
   10-02-96 01:22:31pm send() call failed on CB 22
   Socket error 10053

Messages will flow between the Exchange and Retix MTAs.


The NMI9224 error indicates that after some sort of timeout condition, the Microsoft Exchange Server computer tries to initiate an association recovery over TP4 to the Retix server.

The Retix server drops the connection before the Microsoft Exchange Server recovery operation is complete. This error is non-critical because when the connection is dropped, a new association will be created between the two MTAs.

This behavior is by product design.

Keywords: kbprb KB170007