Microsoft KB Archive/103447

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Article ID: 103447

Article Last Modified on 10/30/2006


  • Microsoft Mail for PC Networks 3.2

This article was previously published under Q103447


When the External Mail program (EXTERNAL.EXE) is started from version 3.2 of Microsoft Mail for PC Networks, the home postoffice must be assigned a direct drive.


There are two stages to running the External Mail program with direct drives:

  1. The Mail Administrator physically connects the machine running the External Mail program to the postoffice's directory on a file server.
  2. The Mail Administrator runs the External Mail program, specifying the drive letters of the direct connections.

To specify the drive letters of the direct connections, the Mail administrator uses one of the following options:

  • In External's .INI file:

    DrivesDirectPO=[drive range]

  • On the command line when starting External:

    /DrivesDirectPO=[drive range]


  • D[drive range]

By default, the External Mail program assumes that the first letter in the drive range is connected to the home postoffice. For example, if the machine running External is connected to postoffices on drives M, N, O, and P, then the parameter -Dmp tells External that the home postoffice is on drive M. If, however, the home postoffice is one of the other drives in the range (O and P in this example), then the administrator must specify the drive letter of the home postoffice with one of the following options:

  • In the .INI file:


  • On command line:



  • H<drive>


See page 35 in the Microsoft Mail "Multitasking MTA Administrator's Guide," and page 240 in the Microsoft Mail version 3.2 "Administrator's Guide."

Additional query words: 3.20

Keywords: KB103447