DOCUMENT:Q247255 01-JUN-2001 [exchange] TITLE :XADM: Information Store Silently Drops Messages PRODUCT :Microsoft Exchange PROD/VER:winnt:5.5 SP3 OPER/SYS: KEYWORDS:exc55sp3 kbExchange550preSP4fix kbExchange550sp4Fix kbgraphxlinkcritical ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, version 5.5 SP3 ------------------------------------------------------------------------------- SYMPTOMS ======== Messages appear to be properly delivered, but are silently deleted by the information store when the message transfer agent (MTA) is not started or the information store loses session to the MTA. In the client, the message appears to be properly delivered because the message leaves the Outbox and becomes visible in the Sent Items folder. CAUSE ===== This issue was introduced when fixing the issue outlined in the following Microsoft Knowledge Base article: Q235455 XCON: Modification in X.400 Blind Copy Implementation If an MTA session is not available because of insufficient resources in the MTA or because the MTA service is currently stopped, the number of MTA recipients is incorrectly set to zero. This causes the message to be deleted from the queue in the information store. RESOLUTION ========== To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, please see the following article in the Microsoft Knowledge Base: Q191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack The following files are available for download from the Microsoft Download Center: x86: DownloadDownload Q248838engi.exe now (http://www.microsoft.com/downloads/release.asp?ReleaseID=25443) Alpha: DownloadDownload Q248838enga.exe now (http://www.microsoft.com/downloads/release.asp?ReleaseID=25444) For additional information about how to download Microsoft Support files, click the article number below to view the article in the Microsoft Knowledge Base: Q119591 How to Obtain Microsoft Support Files from Online Services Microsoft used the most current virus detection software available on the date of posting to scan this file for viruses. Once posted, the file is housed on secure servers that prevent any unauthorized changes to the file. NOTE: When you start this version of the information store, the information store databases are automatically upgraded to a new format. After the databases have been upgraded, you can restore an earlier version of the Store.exe file on the server, but only if it is version 5.5.2651.32 or later. If you restore a Store.exe file earlier than version 5.5.2651.32 after the database has been upgraded, you are no longer able to start the information store. For additional information, click the article number below to view the article in the Microsoft Knowledge Base: Q244976 XADM: Event ID 1197 and 1005 When Starting the Information Store STATUS ====== Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5 SP3. This problem was first corrected in Exchange Server 5.5 Service Pack 4. MORE INFORMATION ================ This issue occurs under the following conditions: - If a message is handed off from the information store to the MTA (information store-side fix). - If the MTA is running as well. - If the system is under stress. This issue is not in any way related to blind carbon copy (Bcc) messages, although the issue was introduced while modifying Bcc message behavior. NOTE: This issue does not occur on dedicated message switches (if a message never reaches the information store). Outbound Internet mail is not affected (it never reaches the MTA) but inbound Internet mail is (because it runs through the information store for content conversion). Additional query words: ====================================================================== Keywords : exc55sp3 kbExchange550preSP4fix kbExchange550sp4Fix kbgraphxlinkcritical Technology : kbExchangeSearch kbZNotKeyword2 kbExchange550SP3 Version : winnt:5.5 SP3 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 2001.