In November of 2020, I was forced by ATT to stop using Thunderbird as my email client, for both incoming & outgoing email. ATT changed its security protocols, and that required that I begin (at that time) using ATT's (pathetic) email client. I have used the very clumsy, very limited ATT / YAHOO email client ever since... and, hated every minute of it. I had previously used Thunderbird for 10-20 years, literally, and I loved the dynamic functionality which Thunderbird offered. Since then, I have hated my ATT / YAHOO email experience, and I would like to start using Thunderbird again, if that is possible, considering the ATT security protocols. Can anyone help me ? Lee Sinoff [email removed from public] Palm Bay, FL