Microsoft KB Archive/321952

= XCON: You Receive a Non-Delivery Report (NDR) When You Reply to a Message Sent from a Lotus Notes Client =

Article ID: 321952

Article Last Modified on 2/27/2007

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition
 * Microsoft Exchange 2000 Enterprise Server

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This article was previously published under Q321952



SYMPTOMS
You can send e-mail messages to a Lotus Notes client, but you cannot reply to e-mail messages that are sent from the Lotus Notes client. When you do so, you receive the following non-delivery report (NDR):

Your message did not reach some or all of the intended recipients.

Subj: FW:

Sent:  and

The following recipient(s) could not be reached: c=US;a=MCI;p=Org;dda:MSXCHNGE=/o=Org/ou=MyOU/cn=RECIPIENTS/ cn=9DB27705-64B20A66-852563A5-710F6; on 04/05/2002 9:32 AM The recipient name is not recognized The MTS-ID of the original message is: c=US;a= MCI;p=Org;l=MOSNT2S-020405053216Z-55209 MyE2kS:MSExchangeMTA:MyOU:CSNT1S



CAUSE
This problem may occur if all the following conditions are true:
 * You are a user on a Microsoft Exchange Server 5.5 site.
 * The Exchange Server computer in the site is connected by an X.400 Connector to an Exchange 2000 computer in a mixed-mode site.
 * The Exchange 2000 computer in the mixed-mode site was upgraded from Exchange Server.
 * The Microsoft Exchange Connector for Lotus Notes is installed on the Exchange 2000 computer in the mixed-mode site.

In this situation, Exchange 2000 uses an X.400 domain-defined attribute (DDA)-encapsulated address instead of the X.400 proxy address for the recipient.



RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange 2000. For additional information about how to obtain and install the latest service pack for Exchange 2000, click the following article number to view the article in the Microsoft Knowledge Base:

301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack



WORKAROUND
To work around this problem, install the Exchange Connector for Lotus Notes on the Exchange Server computer in the mixed-mode site.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

313575 XCON: MTA Builds a New X.400 DDA-encapsulated Address for Contacts

Keywords: kbprb KB321952

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