Hi, I have done.
Godaddy said the port is not closed or blocked by Firewall, also I won't even PHP Mail Out either.
This is a fresh install through Installatron on CPanel and the only thing I tried to do it get SMTP figured out.
Need to get this sorted, no point in migrating DB till the OST system is functional.
I'm still running old DB on OST 1.15.xx on another URL and also has stopped using SMTP, was running this via CPanel Email Routing, then that stopped, then had to move to just PHP Mailing and then that stopped.
OST 1.15.xx was never updated at any time as it was on manual updates only.
I question Godady about this also and said they had made no changes, but something must have changed.