Microsoft KB Archive/150095

= XADM: NDRs After Removing X.400 Address From DL =

Article ID: 150095

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 Q150095



SUMMARY
If the X.400 address of a Microsoft Exchange Distribution List (DL) is removed, messages sent to the DL will return with Non-Delivery Receipts (NDRs) from the Microsoft Exchange Message Transfer Agent (MTA). The following is the message:

Unable to complete the expansion of a distribution list.



RESOLUTION
You must define a valid X.400 address for the Distribution List by following these steps:
 * 1) Confirm your X.400 address for the site under Configuration, Site Addressing, Site Addressing Tab. It should have the X.400 address for the site.
 * 2) Under the E-mail Addresses tab of the Distribution List properties, select New.
 * 3) Under e-mail address type, select X.400.
 * 4) Fill in the General property tab with the information gathered from the Site Addressing tab (Step 1).
 * 5) Specify the Surname(s) field with the Alias of the Distribution List.
 * 6) Select OK to save the changes.

Keywords: kbprb KB150095

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