Microsoft KB Archive/77106

= PC Adm: Connecting Two Postoffices by Using Null Modem =

Article ID: 77106

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Mail for PC Networks 2.1e
 * Microsoft Mail for PC Networks 3.0
 * Microsoft Mail for PC Networks 3.0b
 * Microsoft Mail for PC Networks 3.2
 * Microsoft Mail for PC Networks 3.2a

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This article was previously published under Q77106



SUMMARY
By making changes to the Microsoft Mail for PC Networks script files, you can configure more than one COM port for an external computer to allow communications to another external computer. This will free one COM port for modem communications to another postoffice, while a null modem cable can be used to connect the two external computers to establish postoffice- to-postoffice communications.

The following steps allow two computers, each running the External Mail program, to communicate by using a serial null modem connection on COM1, and allow the COM2 port of one of the computers running the External Mail program to communicate to a remote client or another External Mail program using modem communications.  Modify the NULLMDM.MDM file and add the text &quot;PORT COM1&quot; (without the quotation marks) to the Initialize, Call, and Answer segments of the script file. Compile the script using the SCRCOMP.EXE utility to create a NULLMDM.SCR compiled script file (for more information, see Appendix N of the Microsoft Mail for PC Networks &quot;Administrator's Guide&quot;). Start the Mail Administrator (ADMIN.EXE) program, select External-Admin, Setup, and type &quot; Choose Config, Serial, and choose COM2 in the Comm. Port field. This informs ADMIN.EXE that communications with the Remote clients will take place through the COM2 port. The External Mail program connected to the second postoffice (PO2) must use the script file that matches the modem type connected to the External Mail program. For example, if the modem type connected to the External Mail program going to PO2 is Hayes V-Series, the EXTERNAL command-line should read as follows:

external -dmn -tvseries -hm



Additional query words: 2.10e 3.00 3.00b 3.20 3.20a

Keywords: KB77106

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