Hello Jerry
Well I wanted to know what exactly happens when you click on the screen shot you have supplied earlier and also the help button icon will display additional information to know the possible reasons to why you are getting such a warning.
Do you have an SMTP node in Tx SCOT ?
If yest you can delete the node by right click and then delete it. You can then create a new one by selecting the "create" option when you right click there. Select SMTP and use wizard to complete.
Regards
Reagan