DOCUMENT:Q178537  21-MAR-1999  [exchange]
TITLE   :XCON: NDR and Event ID 3150 When Sending to PAB Entry
PRODUCT :Microsoft Exchange
PROD/VER:WINDOWS:4.0,5.0,5.5
OPER/SYS:
KEYWORDS:kbusage

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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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SYMPTOMS
========

When you send mail to an X.400 personal address book (PAB) entry or one-off
address, you may receive the following non-delivery report (NDR):

   The following recipient(s) could not be reached:

      'Recipient' on 10/16/97 8:13 AM
            Unable to deliver the message due to a recipient problem
            MSEXCH:MSExchangeIS:SiteName:ServerName

In addition, the following event will be logged in the application log of the
Microsoft Exchange Server computer:

   Event ID: 3150
   Source: MSExchangeMTA
   Type: Warning
   Category: X400 Service

   Description:
   An internal MTA error occurred. Object 06000056 failed integrity
   verification. DB attribute: 0. OM attribute: 0. Entity name:

   /o=Organization/ou=SiteName/cn=Configuration/cn=Servers/cn=Servername/cn
   =Organization Private MDB. [XAPI  APPLICATION 31 130 (14)

The object ID referenced in the event description will vary.

CAUSE
=====

The target X.400 address does not have a value for Surname(s). According to the
X.400 specification, a surname is required for an X.400 address to be valid.

RESOLUTION
==========

To resolve this problem, add a surname to the PAB entry or one-off address.

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Keywords          : kbusage 
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2
Version           : WINDOWS:4.0,5.0,5.5
Issue type        : kbprb

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