When the Problems filed in the SMTP Monitor window displays the Clock icon and the TCP/IP link down messages, check the Server TCP Schedule settings first. Make sure the TCP/IP connection are allowed for this time of this day. If the TCP Schedule settings are correct, then set the TCP Schedule Log to All Info. When you that the Suspended Till time in the SMTP Monitor window changes, open and examine the CommuniGate Log. The Log records with TCP(SMTP) marker indicate what has happened when the SMTP module asked the Server to start a TCP/IP session.
If you see that the SMTP module tries to connect to a host, but it fails, or it cannot negotiate with that host, open the SMTP Service Settings and set the SMTP Log to Low-Level or to All Info. When the module makes the next attempt to send messages, open and examine the CommuniGate Log.
Most of the error codes that the SMTP module records in the Log and shows in the Monitor window are the Open Transport or MacTCP error codes. See the Error Codes document for the details.
If you still cannot find the source of the problem, and the administrator of that host cannot help either, copy that part of the log and E-mail it to support@stalker.com with the detailed description of the problem as you see it. Use the About CommuniGate command from the Apple menu of the CommuniGator application to get the information about the versions of your CommuniGate Server and SMTP module. Include that information into your letter.