DOCUMENT:Q146562 16-MAR-1999 [exchange] TITLE :XFOR: Some Connection Parameters Not Configurable Per Domain PRODUCT :Microsoft Exchange PROD/VER:winnt:4.0 OPER/SYS: KEYWORDS:kbusage ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, version 4.0 ------------------------------------------------------------------------------- SUMMARY ======= You can specify some Microsoft Exchange Internet Mail Connector (IMC) options on a per e-mail domain basis using the Microsoft Exchange Administrator program. These include message delivery and message content. However, the following connection parameters cannot be specified on a per e- mail domain basis: Max no. of Inbound Connections Max no. of Outbound Connections Max no. of Connections to a single host Max no. of Messages sent in a connection These four values can be configured in the IMC properties page using the Advanced button on the Connections tab. MORE INFORMATION ================ The ability to set these four values on a per e-mail domain basis is very important to some people who want interoperability with single-threaded SMTP gateways like the Microsoft Mail 3.x SMTP gateway. However, the only current solution, to send SMTP mail directly to a Mail 3.x gateway, would hinder overall performance. This gateway runs on MS-DOS and can only support one connection at a time. This will cause a problem when an outside host tries to make multiple connections to the MS-DOS computer because it could result in: - Many retries initiated as the IMC tries to open multiple threads to a single-threaded SMTP gateway. - Lock-ups of single-threaded SMTP gateways. - Loss of overall IMC performance because the "maximum number of connections to a single host" must be set to 1. Additional query words: ====================================================================== Keywords : kbusage Technology : kbExchangeSearch kbExchange400 kbZNotKeyword2 Version : winnt:4.0 ============================================================================= 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.