So I might have a solution. I'm still using the hMailServer application running on the FMSA machine as a SMTP relay agent but within my script instead of pointing to the internal URL I am pointing to the ip address of the FM server. So far it has tested successfully. I couldn't begin to guess why it suddenly started working again. Maybe my internal DNS has stale records or something isn't resolving properly. Maybe a windows update changed something who knows. I am sorry this is not a good solution to the problem but it seems to have worked for a legacy product. Hope this might help anyone else who is still running version 10 server.