DOCUMENT:Q161813  12-APR-1999  [exchange]
TITLE   :XFOR: SMTP Headers Visible in MSMail Clients After SP3 Install
PRODUCT :Microsoft Exchange
PROD/VER:winnt:4.0
OPER/SYS:
KEYWORDS:kbusage

======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Exchange Server, version 4.0 
 - Microsoft Mail Server 
-------------------------------------------------------------------------------

SYMPTOMS
========

After you install Microsoft Exchange Server Service Pack 3, SMTP headers will be
made visible to client computers running MS Mail 3.x.

MORE INFORMATION
================

Internet mail coming into the Internet Mail Connector and then though Microsoft
Exchange Server to an MS Mail 3.x postoffice will be delivered with the SMTP
headers viewable. Also when a Microsoft Exchange Server user sends mail to an MS
Mail user using an SMTP address, the MS Mail user receives all the header
information in the body of the message. Because of this functionality in
Microsoft Exchange Server Service Pack 3, the parameter "STRIPGATEWAYHEADER=0/1"
in the Mail.ini initialization file is ignored.



A new registry entry has also been added for the MSMI that will work in
conjunction with the above hotfix. This entry will allow you to turn on or off
SMTP headers sent to MSMail clients.

The registry entry is:

\HKEY_LOCAL_MACHINE
\SYSTEM
\CurrentControlSet
\Services
\MSExchangeMSMI
\Parameters

Value Entry:Pass SMTP headers to SFS
Data Type:REG_DWORD
Range: 0 | 1
Default: 0

Value  Description
1      The Exchange MS Mail Connector sends SMTP headers to MS Mail 3.x
SFS clients.
0      The Exchange MS Mail Connector does not send SMTP headers to MS
       Mail 3.x SFS clients.

STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange version 4.0.
This problem was corrected in the latest Microsoft Exchange 4.0 U.S. Service
Pack. For information on obtaining the service pack, query on the following word
in the Microsoft Knowledge Base (without the spaces):

   S E R V P A C K


Additional query words:

======================================================================
Keywords          : kbusage 
Technology        : kbExchangeSearch kbExchange400 kbZNotKeyword2 kbMailSearch kbZNotKeyword3
Version           : winnt:4.0
Issue type        : kbbug
Solution Type     : kbfix

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

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1999.