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Q156896: XCON: Cannot Send to DL if Sender Does not have X.400 Address

Article: Q156896
Product(s): Microsoft Exchange
Version(s): winnt:4.0,5.0,5.5
Operating System(s): 
Keyword(s): kbusage exc4 exc5 exc55
Last Modified: 22-DEC-1999

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The information in this article applies to:

- Microsoft Exchange Server, versions 4.0, 5.0, 5.5 
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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.

Additional query words:

======================================================================
Keywords          : kbusage exc4 exc5 exc55 
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2
Version           : winnt:4.0,5.0,5.5

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