KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q152903: XFOR: Mail Connector Dispatch Fails Against Postoffice on Unix

Article: Q152903
Product(s): Microsoft Exchange
Version(s): winnt:4.0
Operating System(s): 
Keyword(s): kbusage
Last Modified: 29-MAR-1999

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

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

SYMPTOMS
========

When you use the Microsoft Exchange 4.0 MS Mail Connector against an MS Mail
Postoffice that is residing on a UNIX server, it will not dispatch mail from the
Postoffice. Messages will be successfully dispatched into the Postoffice, but
the following event ID will be generated by the Microsoft Exchange PC MTA in the
application event log upon attempting to retrieve outbound mail from the
Postoffice(s) on the UNIX computer:

  Event ID: 4254
  Unable to deliver mail to \\servername\maildata\P1\XXXXXXXX.0lk
  MS Mail Connector (PC) MTA will retry in the next cycle.

CAUSE
=====

Mail is not dispatched from the Postoffice because files on the UNIX system are
written in lower case. The Microsoft Exchange 4.0 Microsoft Mail Connector
requests creation of the file in upper case and expects \P1\<prefix>.0LK
files to be generated. Specifically, the semaphore file is thought to be from
another process when it is not in upper case. As a result, mail will not be
dispatched.


STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 4.0. This problem was corrected in the latest Microsoft Exchange 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: LMUX undeliverable

======================================================================
Keywords          : kbusage 
Technology        : kbExchangeSearch kbExchange400 kbZNotKeyword2
Version           : winnt:4.0

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

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.