DOCUMENT:Q188594 21-APR-1999 [exchange] TITLE :XADM: Event ID 1023 Reports Logon Failure Audit PRODUCT :Microsoft Exchange PROD/VER:WINDOWS:5.0,5.5 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 5.0, 5.5 ------------------------------------------------------------------------------- SYMPTOMS ======== Th Event Viewer application log displays several events similar to the following: Event ID: 1023 Source: MSExchangeIS Private Type: Failure Audit Category: Logons Description: MESSAGING\ServiceAccount was validated as /o=Organization/ou=Site/cn=Recipients, Utility/cn=MSExchangeMCA but was unable to log on to /o=Organization/ou=Site/cn=Recipients/cn=mailbox. CAUSE ===== This event is logged when you run MBClean from a server where the user mailboxes do not reside. This event is informational only and does not result in any failures in running MBCLean. The event can be ignored. WORKAROUND ========== Install MBClean on a server where the user mailboxes are located. ====================================================================== Keywords : Technology : kbExchangeSearch kbExchange500 kbExchange550 kbZNotKeyword2 Version : WINDOWS:5.0,5.5 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1999.