DOCUMENT:Q168137 23-DEC-1999 [exchange] TITLE :XCON: Exchange to MCI and Sprint Interoperability PRODUCT :Microsoft Exchange PROD/VER: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 ------------------------------------------------------------------------------- SYMPTOMS ======== Messages sent from Microsoft Exchange Server X.400 Connector to MCI and then relayed to Sprint (telemail) may have problems and subsequently get rejected by Sprint's message transfer agent (MTA). However, no non-delivery report (NDR) is generated by the Sprint MTA. The message is then placed in Sprint's MTA bad mail directory. CAUSE ===== Sprint MTAs do not accept messages containing Per-Domain-Bilateral information. When MCI relays the message, a service downgrade from the 1988 standard to the 1984 standard takes place so Sprint can accept the message. MCI MTAs should then discard the bilateral domain information in the P1 but do not, causing Sprint MTAs to reject the message. No NDR by Sprint MTA is possible because Sprint is no longer able to read the originator/recipient (O/R) address from the P1, which would be malformed in this instance. RESOLUTION ========== Microsoft Exchange MTA can be configured to suppress generation of Per- Domain-Bilateral information at the originating Exchange Server MTA. To disable the Per-Domain-Bilateral information, please see the following article in the Microsoft Knowledge Base: Q157358 XCON: Per-Domain-Bilateral-Info and Third Party Systems Additional query words: ====================================================================== Keywords : exc4 exc5 exc55 Technology : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2 Version : 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.