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Q176185: XFOR: 1251 Character Sets Not Preserved on Incoming IMS Message

Article: Q176185
Product(s): Microsoft Exchange
Version(s): WinNT:5.0
Operating System(s): 
Keyword(s): 
Last Modified: 14-MAR-1999

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The information in this article applies to:

- Microsoft Exchange Server, version 5.0 
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SYMPTOMS
========

Messages sent with Russian Athena containing the Windows-1251 character set,
when downloaded via POP, contain body corruption.

CAUSE
=====

During inbound processing, the Internet codepage property (PR_INTERNET_CPID) is
being set only if the Iso codepage of the incoming character set is not a
Windows codepage. Windows 1251, KOI8-R, and ISO- 8859-5 all fall in the 1251
character set group, so without the original codepage information, Exchange
always maps it using the MIME database, which maps it to KOI8-R. Therefore,
messages coming in using Windows-1251 and ISO-8859-5 are sent out as KOI8-R. Now
the Internet codepage property ALWAYS is set on inbound, so Exchange knows which
character set to use on outbound.

STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.0. This problem has been corrected in the latest U.S. Service Pack for
Microsoft Exchange Server version 5.0. 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: Internet Mail Service

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Keywords          :  
Technology        : kbExchangeSearch kbExchange500 kbZNotKeyword2
Version           : WinNT:5.0
Issue type        : kbbug
Solution Type     : kbfix

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