Overview
You may need to set up a FaxMaker server to only receives faxes (but does not send), or the other way around (sends but does not receive).
Solution
Open the GFI FaxMaker Configuration application, go to Lines/Devices, select Properties, and then select the line you want to configure to access its specific Properties:
In the Line options of the relevant line, you can set it to send or receive faxes (or both):
For example, if you don't want your server to send faxes, go through all the lines properties and uncheck "Send outgoing faxes".