DOCUMENT:Q316616 06-AUG-2002 [exchange] TITLE :"Event ID 4018" Error Message When You Try to Send E-Mail PRODUCT :Microsoft Exchange PROD/VER::5.5 OPER/SYS: KEYWORDS:kberrmsg ocsso ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, version 5.5 ------------------------------------------------------------------------------- SYMPTOMS ======== When you attempt to send e-mail messages through Exchange Server 5.5, your messages may not be delivered. Additionally, you may not receive mail as expected. In the list of services under Computer Management (click Start, point to Programs, point to Administrative Tools, and then click Computer Management), it appears that Internet Mail Service is not running. When you attempt to manually start Internet Mail Service, the service does not start and the following events are displayed in the Event Viewer: Event ID: 4018 Type: Error Source: MSExchangeIMC Description: Unable to start the Internet Mail Connector service because MAPI could not be initialized. -and- Event ID: 4116 Type: Error Source: MSExchangeIMC Description: An error was returned from the messaging software, the Internet Mail Service uses, to process messages on the Microsoft Exchange Server. It is possible that the piece of mail being processed at the time will not be delivered. The message that was being processed has been moved to the "BAD" folder. Use the appropriate utilities found in the SUPPORT directory of your Exchange CD to view and manipulate these messages. CAUSE ===== This behavior can occur if the version of the Mapi32.dll file that is installed on your computer is not compatible with the installed Exchange Server service pack. RESOLUTION ========== To resolve this issue, verify that the Mapi32.dll file on your system is the correct version for the currently installed Exchange Server service pack. If the version installed on your system is incorrect, replace Mapi32.dll with the correct version. To determine the version of the Mapi32.dll file on your computer, follow these steps: 1. Navigate to the :\winnt\system32 folder. 2. Right-click Mapi32.dll, and then click Properties. 3. In the Properties dialog box, click the Version tab. Note the version number that is displayed at the top of this window. 4. Ensure that the version number matches the service pack that is installed on your computer. To do this, consult the following table. Service pack version Mapi32.dll version number ------------------------------------------------------ No service pack installed 5.5.1960 Service Pack 1 5.5.2232 Service Pack 2 5.5.2448 Service Pack 3 5.5.2650 To replace the Mapi32.dll file on your computer, follow these steps: 1. In Windows Explorer, right-click the Mapi32.dll file that you located in step 2 in the first set of steps in the "Resolution" section of this article, and then click Rename. 2. Type "Mapi32.dll.old" (without the quotation marks), and then press ENTER. 3. Insert the Exchange Server 5.5 CD-ROM into your computer's CD-ROM or DVD-ROM drive, and then navigate to the :\server\enterprise\setup\i386\exchange folder. 4. Right-click the Mapi32.dll file, and then click Copy. 5. In Windows Explorer, navigate to the :\winnt\system32 folder. 6. On the Edit menu, click Paste. 7. Restart your computer. NOTE: You must reinstall any Exchange Server service packs that were previously installed on your computer. MORE INFORMATION ================ For additional information about Exchange Server service packs, click the article number below to view the article in the Microsoft Knowledge Base: Q301378 How to Obtain the Latest Exchange 2000 Server Service Pack Additional query words: ====================================================================== Keywords : kberrmsg ocsso Technology : kbExchangeSearch kbExchange550 kbZNotKeyword2 Version : :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 2002.