The enclosed fix for the Exchange Message Transfer Agent (MTA) is located in two executables.

MTAFIXI.EXE file contains the files for the i386 platform.
MTAFIXA.EXE contains the files for the ALPHA platforms.

Each executable will contain 16 files:

	emsmta.exe	Executable located in the EXCHSRVR\BIN directory
	ems_rid.DBG     Debug Symbols	
	ems_rid.dll	Library file located in the EXCHSRVR\BIN directory
	emsmta.DBG      Debug Symbols	
	dcprods.cat	File located in the EXCHSRVR\BIN and EXCHSRVR\MTADATA directory
	info4log.cfg	Config file located in the EXCHSRVR\MTADATA directory
	infollog.cfg	Config file located in the EXCHSRVR\MTADATA directory
	mtamsg.DBG      Debug Symbols	
	mtamsg.dll	Library file located in the EXCHSRVR\RES directory
	x400om.DBG      Debug Symbols	
	x400om.dll	Library file located in the EXCHSRVR\BIN directory
	x400omv1.DBG    Debug Symbols	
	x400omv1.dll	Executable located in the EXCHSRVR\BIN directory
	HOTFIX.INI	Text file used to install MTA Hotfix
	HOTFIX.EXE	Hotfix executable
	Hotfix.txt	Hotfix readme.txt
	

Installation instructions:
================================
NOTE:THIS FIX IS ONLY FOR MICROSOFT EXCHANGE SERVER VERSION 5.5  
             DO NOT APPLY FOR VERSION 4.0 OR 5.O

Download the MTAFIXA.exe or MTAFIXI.EXE file and decompress the zip2exe file by running the executable.

Before replacing the MTA files the Information Store, Internet Mail Service and Message Transfer Agent 
services should be stopped (as well as any custom dependencies). 

The files can be manually replaced or the Hotfix utility included can be utilized.
For additional assistance with the Hotfix utility Hotfix.txt contains general instructions.

Additional information is available in the following Knowledge Base articles Q177820, Q175042, Q177867, 
Q177862, Q178376, Q152932, Q180350, Q173713, Q179739, Q169113, Q181848, Q176952, 
Q182758, Q181513, Q180730.