Fax to SMTP Relay Issue

Thank you for the information. I think we have a distro install. We DO NOT though have anything in the postfix files that point us to an SMTP server though. I did a “core show channels verbose” while a fax call was coming in and it shows the following information about the call:

This gives me the impression that we have some application running to create the fax and send the e-mail. We cannot locate this application to look into it though. Have you ever seen this before?