Managed by the FaxBack Support Team
This article applies to NET SatisFAXtion 8.5.

PROBLEM

Port 25 conflict
An SMTP Server or Virtual SMTP Server (Windows 2000) which uses port 25 is running on the same machine as a NET SatisFAXtion SMTP Gateway.
The user will get the following error in mloader.log

SMTP E-mail Gateway
SMTPPost.dll
Version 6.2.0.1378
Copyright (c) 1997-2002 FaxBack Inc.
All rights reserved.

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WSAEADDRINUSE - Address in use - You may have a mail server that has already claimed the desired port.

Error code: 3104

SOLUTION

Disable the Virtual SMTP server that can be installed on Windows 2000 systems, from services.
Control Panel - Administrative Tools - Services - Disable the service for "Simple Mail Transport Protocol (SMTP)"

IF the SMTP Server on this box is needed:
The port the NET SatisFAXtion SMTP Server uses can be changed by telling the SMTP Gateway to use a different port number

In SMTPPost's registry settings, create the setting local_port as a String Value.
Set the value to the new port number.


EXAMPLE:
[HKEY_LOCAL_MACHINE\SOFTWARE\FaxBack\SMTPPost]
"local_port" = "PortNumber" (String Value)

You will have to find a port that is usable on your system. Below is a listing of ports and what they are typically used for.



RELATED LINKS:
IP Port Numbers. Full Listing
http://www.good-stuff.co.uk/useful/portfull.html

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