Apparently I have changed the Thunderbird account settings causing an alert message on all incoming emails. As shown in the bottom of the example attachment it reads, " The unique identity matching the prom address was not found. The message will be sent using the current from field and settings from identity Bob Poulnot <atldetective@gmail.com>. Also by opening this incoming email it is showing at the top that it is "From" Bob Poulnot <atldetective@gmail.com> as a reply. I did not click on reply. Please help. Thank you