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Q263841: PC DB: NDR When Sending from Microsoft Mail to Exchange Server

Article: Q263841
Product(s): Microsoft Exchange
Version(s): WINDOWS:; winnt:4.0,5.0,5.5
Operating System(s): 
Keyword(s): 
Last Modified: 20-OCT-2000

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The information in this article applies to:

- Microsoft Exchange Server, versions 4.0, 5.0, 5.5 
- Microsoft Mail for PC Networks 
- Microsoft Mail for Windows 
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SYMPTOMS
========

If a Microsoft Mail (MS Mail) user tries to send e-mail to an Exchange Server
user by using Microsoft Outlook, the MS Mail user may receive a non-delivery
report (NDR) that states that the Exchange Server user does not exist. If the
same MS Mail user tries to send e-mail to an Exchange Server user by using the
MS Mail client, the message is delivered successfully.

CAUSE
=====

This issue can occur if there is corruption in the address list for the Exchange
Server shadow postoffice (.usr file).

RESOLUTION
==========

To resolve this issue:

1. Use the MS Mail Administrator program to delete the reference to the shadow
  postoffice. This causes the old .usr file to be abandoned.

2. Request a full import by using the MS Mail Administrator program.

3. Wait for directory synchronization to finish or perform a manual directory
  synchronization. This process creates and populates the new .usr file.

Additional query words:

======================================================================
Keywords          :  
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2 kbMailSearch kbZNotKeyword3
Version           : WINDOWS:; winnt:4.0,5.0,5.5
Issue type        : kbprb

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