Knowledge Base

XADM: NDRs After Removing X.400 Address From DL

Article ID: 150095

Article Last Modified on 10/28/2006


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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