DOCUMENT:Q245041 06-AUG-2002 [exchange] TITLE :XFOR: Postmaster Incorrectly Receives SMTP Messages PRODUCT :Microsoft Exchange PROD/VER:winnt:5.5 SP2 OPER/SYS: KEYWORDS:exc55sp2 kbExchange550preSP4fix kbExchange550sp4Fix ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, version 5.5 SP2 ------------------------------------------------------------------------------- SYMPTOMS ======== The Microsoft Exchange Server Internet Mail Service accepts a partial addresses of p@.com (or "po", "pos", "post", "postm", and so on) and delivers it to the designated postmaster account. If a user account exists with the address, mail is delivered to the user as expected. RESOLUTION ========== To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base: Q191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack STATUS ====== Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5 Service Pack 2. This problem was first corrected in Exchange Server 5.5 Service Pack 4. Additional query words: ====================================================================== Keywords : exc55sp2 kbExchange550preSP4fix kbExchange550sp4Fix Technology : kbExchangeSearch kbZNotKeyword2 kbExchange550SP2 Version : winnt:5.5 SP2 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.