DOCUMENT:Q182040  22-FEB-2001  [exchange]
TITLE   :XFOR: Internet Mail Service Converts Two-Digit Years Incorrectly
PRODUCT :Microsoft Exchange
PROD/VER:winnt:5.0,5.5
OPER/SYS:
KEYWORDS:kbYear2000 kbExchange500preSP3fix

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The information in this article applies to:

 - Microsoft Exchange Server, versions 5.0, 5.5 
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SYMPTOMS
========

When you receive a message that has a two-digit year field through the Internet
Mail Service, the year may not be properly converted to four digits. This
problem is not likely to occur before the year 2000.

CAUSE
=====

The Internet Mail Service does not properly convert two-digit years to four
digits for the year 2000.

STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.0.


A supported fix is now available, but has not been fully regression-tested and
should be applied only to systems experiencing this specific problem. Unless you
are severely impacted by this specific problem, Microsoft recommends that you
wait for the next Service Pack that contains this fix. Contact Microsoft
Technical Support for more information.

This fix has been posted to the following Internet location:

   ftp://ftp.microsoft.com/bussys/exchange/exchange-public/fixes/Eng/Exchg5.0/Post-SP2-STORE/


Microsoft has confirmed this to be a problem in Microsoft Exchange Server version
5.5. This problem has been corrected in the latest U.S. Service Pack for
Microsoft Exchange Server version 5.5. 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


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

After you apply the fix described in the Status section of this article, the
two-digit years convert to four digits according to the following table:

   Two-digit year   Four-digit year
   --------------------------------
   00-49            2000-2049
   50-99            1950-1999

For additional information about date conversion problems with the Internet Mail
Service, please see the following article in the Microsoft Knowledge Base:

   Q173491 XFOR: Message to IMC via Telnet with Year 1900

Additional query words: imail y2k

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Keywords          : kbYear2000 kbExchange500preSP3fix 
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbZNotKeyword2
Version           : winnt:5.0,5.5
Issue type        : kbbug
Solution Type     : kbfix

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