Thunderbird Community Forum

re: OAuth2 Authentication for Yahoo, AOL and ATT

My settings selections don't really follow your help descriptions to the letter,so..., also, I already have 2 accounts on 2 platforms and they seem to already be configured with SMTP outging servers using OAuth2.

I'm confused since I'm now on 140.8.0 and have not needed to change a thing, contrary to expectations set from T-bird app popup warning and Mozilla article.(?)

Created new yahoo mail IMAP (PKCE) account using Thunderbird account creation. All seemed to work well. However, new account does not receive mail from "some" other IMAP and POP accounts in testing, including from TB Pro. Strangely, mail sent from oldest POP accounts works. Mail from newer POP gmail and TBPro accounts is not received. TB 149.0b1 Windows 11

Thunderbird worked well on windows 10 until the first of this year. When I write an email or re-send (some) emails, the email shows up with a lot of the letters garbled like code. Also a number of *s at front and end of sentences. All three of my computers are suffering the same maladies. All windows 10, Norton, Malware, same problems. I have tried every change that I am allowed on Thunderbird, and have use the compact function and repair folder function, to no avail.

Is it possible the problem is related to a problem with Thunderbird and ATT or Comcast, or my modem/router?