DOCUMENT:Q125328 12-FEB-2002 [pcmail] TITLE :PC Ext: Purpose of CommInOnly Option for External PRODUCT :Microsoft Mail For PC Networks PROD/VER::3.2,3.2a OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Mail for PC Networks, versions 3.2, 3.2a ------------------------------------------------------------------------------- SUMMARY ======= There are two scenarios when using the CommInOnly option for the Message Transfer Agent (MTA), EXTERNAL.EXE, can be helpful. 1. When setting up two MTAs that will be connected to each other via modem, it is possible that they may try dialing each other at the same time. This will happen if they both have outgoing messages queued and the dialing interval time has elapsed. This will cause the modems to both be busy and not connect to each other, resulting in no mail transferred on that attempt. If you add the CommInOnly option to MTA1, then MTA1 will never attempt to dial out. It will only accept incoming calls. Therefore, outgoing messages queued to be sent from MTA1 to MTA2 will not get delivered until MTA2 dials into MTA1. The External Mail program only dials out if there is outbound mail. 2. Use the CommInOnly option when setting up an MTA that only remote users dial. This will prevent that MTA from dialing out to another postoffice and keep the modem free for incoming remote users. This option does not hinder the remote users ability to send or receive messages. MORE INFORMATION ================ Please see page 252 in the "Administrator's Guide" for version 3.2 of Microsoft Mail for PC Networks. CommInOnly option ----------------- In .INI file : CommInOnly On command line: /CommInOnly or -KI Use this option to specify that the remote communications link (CommType of asynchronous modem, X.25 Eicon, or X.25 Atlantis board) is to transfer incoming messages. Do not use this option with the CommOutOnly option. If you do not specify this option or the CommOutOnly option or set one-way mail for the postoffice with the Administrators program (ADMIN.EXE), two way mail transfer occurs. Additional query words: 3.20 3.20a ====================================================================== Keywords : Technology : kbMailSearch kbZNotKeyword3 kbMailPCN320 kbMailPCN320a Version : :3.2,3.2a ============================================================================= 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.