You should have the CommuniGate Server installed and running before you install the CommuniGate SMTP module. Use the CommuniGate Installer to place the SMTP module file into the Modules folder inside the CommuniGate Folder in your System Folder. If you use the FreePPP software to link to the Internet, make sure the TCP Agent applet is also placed in the Modules folder. Restart the CommuniGate Server.
After the module was installed and the CommuniGate Server has been restarted, login as the Postmaster and check that the SMTP item appears in the Server menu. One item should appear in the Monitors section, one - in the Queue section.