I believe that this is a bug in the Smart Host processing code. Here is how we can replicate the problem: 1. We configure a Smart Host using STARTTLS on port 587. 2. Restart Xeams (no browser open on Live Monitor) Now the server will be showing the Live Monitor debug loop (garbage@asdf.com emails forever). It will also be impossible to return to the Smart Host configuration page - it will be blank. We can only stop the error by manually editing /opt/Xeams/config/smartHosts.dat to remove the Smart Host, then restarting Xeams. Please investigate (we replicated this condition repeatedly on server version from 6.3.5972 to 7.0.6082).