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Q125328: PC Ext: Purpose of CommInOnly Option for External

Article: Q125328
Product(s): Microsoft Mail For PC Networks
Version(s): 3.2,3.2a
Operating System(s): 
Keyword(s): 
Last Modified: 12-FEB-2002

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The information in this article applies to:

- Microsoft Mail for PC Networks, versions 3.2, 3.2a 
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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

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Keywords          :  
Technology        : kbMailSearch kbZNotKeyword3 kbMailPCN320 kbMailPCN320a
Version           : :3.2,3.2a

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