DOCUMENT:Q159162 19-DEC-1999 [exchange] TITLE :XCON: MSMail Read-Receipts Missing Data Across Organizations PRODUCT :Microsoft Exchange PROD/VER:WINDOWS:3.0,3.2,3.2a,3.5; winnt:4.0,5.0,5.5 OPER/SYS: KEYWORDS:exc4 exc5 exc55 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 4.0, 5.0, 5.5 - Microsoft Mail for PC Networks, versions 3.0, 3.2, 3.2a, 3.5 ------------------------------------------------------------------------------- SYMPTOMS ======== When you send a mail message with a read-receipt request from a Microsoft Mail 3.x client to a Microsoft Exchange Server user in a different organization, the read-receipt is returned with missing To and Subject fields. A mail message sent with a read-receipt request from Microsoft Exchange Client to a Microsoft Mail user across a different organization results in the following returned receipt: Your message To: Unknown Subject:Unknown Sent: Unknown was read on 11/8/96 8:36:00 AM CAUSE ===== The Microsoft Mail client generates and responds to read receipts using MAPI commands. These commands are encapsulated by Exchange Server in the MDBEF format when they arrive in Exchange Server. However, when going to another Exchange Server organization, these commands are converted to a native X.400 format and the MDBEF properties are stripped out. The Microsoft Mail client cannot compensate for this X.400 limitation because it does not know how to properly encode the message using standard X.400 flags for the handling of read receipts. RESOLUTION ========== To work around this problem: - Have all the computers running Exchange Server in the same organization. This will ensure that the MDBEF is preserved and the read receipt maintains its proper format. Additional query words: rr msmail p2 ia5 ====================================================================== Keywords : exc4 exc5 exc55 Technology : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2 kbMailSearch kbZNotKeyword3 kbMailPCN320 kbMailPCN320a kbMailPCN300 kbMailPCN350 Version : WINDOWS:3.0,3.2,3.2a,3.5; winnt:4.0,5.0,5.5 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.