Yahoo with old at&t domains (formerly ameritech.net) stopped working
Yesterday, my ameritech.net email stopped working in Thunderbird. I get an error saying it's unable to log into the server. The email account works from outlook, and from a web browser, so I know I'm using the right password. I've tried it on more than one computer and it's only Thunderbird that is having the problem. It's working with my gmail account. Any help would be appreciated.
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Right password.... That worries me as you should be either using oauth authentication or a mailkey. Neither of those are your password.
So what is the error message exactly (verbatim, not some translation or abbreviation)
What form of Authentication are you using in account settings?