I upgraded my MacBook Air to High Sierra. Several applications had to be updated and Thunderbird was one of them. I updated it to Thunderbird 60.2.1. However, when I try to use Thunderbird, in the middle of writing a message, I get a popup that says: Thunderbird wants to connect to smtp.mail.me.com This application is running in App Translocation, a MacOS security mechanism for apps that are not properly installed. You cannot create permanent rules until you move the application to the Applications folder and launch from there. Thunderbird was always in the Applications folder and worked fine. After the update, it still is. When I try to send the message, I get a window that says "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.mail.me.com timed out. Try again." The first screen shot shows that message plus the Advanced Preferences window that says version 60.2.1 is installed. The second screen shot shows it is installed in the Applications folder. Why is this broken and how do I fix it?