I have been using TB for some time now. Late last year (2020) I started having issues with my @att.net email addresses. Several account in TB stopped being able to pull messages. I've researched, called AT&T, cannot figure this out. I put in a correct password and the imap.mail.att.net server seems to reject it. However in my TB I do have 1 email address (it's an @att.net address and the server setup is the same as the others, imap.mail.att.net, port 993, etc) and it works just fine. TB retrieves emails for this one account perfectly fine. The other few I'm trying to use, I get the login/password issue, specifically it says "Login to server imap.mail.att.net with username xxx@att.net failed." What on earth is the problem? I changed the minimum TLS version in my TB to 1 from 3 (since I'm running TB 78.5) and that has not helped. Why does 1 single address work in TB and others do not? I know the passwords are correct...I can login to a browser and check the email accounts that way. Please, please help if someone can. Thank you.