DOCUMENT:Q302394  06-AUG-2002  [exchange]
TITLE   :XADM: NDR Sending E-Mail to Public Folder in Mixed Environment
PRODUCT :Microsoft Exchange
PROD/VER::5.5
OPER/SYS:
KEYWORDS:

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The information in this article applies to:

 - Microsoft Exchange Server, version 5.5 
 - Microsoft Exchange 2000 Enterprise Server 
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SYMPTOMS
========

When you attempt to send e-mail to a public folder in a mixed Exchange Server
environment (Exchange 2000 Server and Exchange Server 5.5), a non-delivery
report (NDR) occurs on the Exchange Server 5.5 computer. The following events
are issued by the Exchange Server 5.5 computer that receives the e-mail
message:

   Event Type: Information
   Event Source: MSExchangeMTA
   Event Category: X.400 Service
   Event ID: 270
   Description:
   A permanent error has occurred with Entity
   /O=ORG/OU=SITE/CN=CONFIGURATION/CN=SERVERS/CN=SERVER_NAME/CN=MICROSOFT PUBLIC
   MDB. Entity is a Message Object is a Normal Priority Message.
   Object: #######. Message ID: C=us;A= ;P=Company;L=Server_Name###### Content
   length: ####, External Trace information (first ### bytes) = ##### PDU dump
   reference ###

   Event Type: Warning
   Event Source: MSExchangeMTA
   Event Category: X.400 Service
   Event ID: 290
   Description:
   A non-delivery report (reason code transfer-failure and diagnostic code Omit
   any diagnostic code) is being generated for message C=us;A=
   ;P=ORG;L=Server_Name#####. It was originally destined for DN:<DN of public
   folder>; (recipient number #), and was to be redirected to.

CAUSE
=====

This behavior occurs if both of the following conditions are true:

 - No Exchange 2000 Server computers in the Routing or Admin group have a public
   folder store for the Messaging Application Programming Interface (MAPI)
   Public Folder tree.

   -and-

 - No Exchange Server 5.5 computers in the Routing or Admin group have replicas
   of the folder being e-mailed.

If the Exchange Server 5.5 information store receives the e-mail and cannot
"reach" a replica of the e-mailed folder, it issues an error message to the
message transfer agent (MTA). The MTA then issues an NDR.

RESOLUTION
==========

To resolve this issue, use any of the following methods:

 - Add a MAPI public folder store to the Exchange 2000 Server computer in the
   Routing group or Admin group.

   -or-

 - Add a replica of the folder in question to an Exchange Server 5.5 computer in
   that site.

   -or-

 - Set up an affinity from the Exchange Server 5.5 site to an Exchange Server
   5.5 site that contains a replica of the e-mailed public folder.

STATUS
======

This behavior is by design.


Additional query words:

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Keywords          :  
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2 kbExchange2000Search kbExchange2000EntServ
Version           : :5.5
Issue type        : kbprb

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