DOCUMENT:Q192349 20-MAY-2002 [exchange] TITLE :XADM: Messages NDR after Applying 5.5 SP or 5.0 Hotfix PRODUCT :Microsoft Exchange PROD/VER:WinNT:5.0,5.5 OPER/SYS: KEYWORDS:exc55sp2fix ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 5.0, 5.5 ------------------------------------------------------------------------------- SYMPTOMS ======== After you apply Microsoft Exchange Server 5.5 Service Pack (SP) 1 or a Microsoft Exchange Server 5.0 post-SP2 hotfix to Store.exe, messages sent to users on the same information store or to users outside the site may be returned with a non-delivery report (NDR) that looks similar to the following: Your message did not reach some or all of the intended recipients. Subject: message subject Sent: 01/01/99 11:00AM The following recipient(s) could not be reached: User1 on 01/01/99 11:00AM No transport provider was available for delivery to this recipient. Also, intersite directory replication may be affected. Because intersite directory replication is message based and must pass through the Directory Service's mailbox in the information store, the replication messages may be returned in the same manner as described above. The Directory Service mailbox will appear to have a backlog of mail when you view it through the Exchange Server Administrator's Mailbox Resources tab. CAUSE ===== The information store was incorrectly parsing addresses in the routing table. This incorrect parsing results in all messages being forwarded to the MTA for delivery, and then being returned as non-deliverable. An address in the routing table similar to the following will cause this problem: Type Value FAX FAX:/O=SAMPLEORG/OU=SAMPLESITE; NOTE: This is just an example. It does not mean that only FAX type addresses are affected; this can happen with any address type installed by a third-party product. RESOLUTION ========== Exchange Server 5.0 ------------------- A supported fix that corrects this problem is now available from Microsoft, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next Microsoft Exchange Server 5.0 service pack that contains this fix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS Exchange Server 5.5 ------------------- To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For more information, please see the following article in the Microsoft Knowledge Base: Q191014 : XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack STATUS ====== Microsoft has confirmed this to be a problem in Microsoft Exchange Server versions 5.0 and 5.5. Additional query words: SP1 ====================================================================== Keywords : exc55sp2fix Technology : kbExchangeSearch kbExchange500 kbExchange550 kbZNotKeyword2 Version : WinNT:5.0,5.5 Issue type : kbbug Solution Type : kbfix ============================================================================= 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 2002.