This is way I using gmail now, but that is kind a opposite to statement in message I replied to: "set DNS for MX to Google". Currently I have to redirect to Go

This is way I using gmail now, but that is kind a opposite to statement in message I replied to: "set DNS for MX to Google". Currently I have to redirect to Google and Google only send from those boxes using 3rd party SMTP server. So main advantage of having trusted sender is not there.