Microsoft KB Archive/156896

= XCON: Cannot Send to DL if Sender Does not have X.400 Address =

Article ID: 156896

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q156896



SUMMARY
When you attempt send a message to a Microsoft Exchange Distribution List (DL), you might receive the following error:

Unable to deliver the message due to a recipient problem.

This error will occur if you do not have an X.400 address. To add an X.400 address, the Microsoft Exchange administrator will need to follow these steps:
 * 1) Start the Microsoft Exchange Administrator program.
 * 2) Select the sender's mailbox.
 * 3) Open the File menu, click Properties, click E-mail Addresses, click New, click X.400 Address, and add the X.400 address.



MORE INFORMATION
Mail can be sent to other users without any problem if an X.400 address is not present. However, when mail is sent to a DL, the Microsoft Exchange Message Transfer Agent (MTA) requires that the sender have an X.400 address.

Keywords: kbusage KB156896

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