Add me to the list. Using the latest versions of Thunderbird and Outlook, I get SERVER ERROR when I try to log in. The same issue happens on two Xfinity accounts using two different PCs. (both latest Win10) iPhone mail works fine. The exact error here is: "SENDING OF PASSWORD FOR (my email address) DID NOT SUCCEED. MAIL SERVER pop.mail.yahoo.com RESPONDED: SERVER ERROR - PLEASE TRY AGAIN LATER." I've been waiting for this to be resolved since 2/8/2021 and I confirmed I do have new emails on the account by visiting yahoo webmail. I've also tried deleting the account and re-adding it, bit that fails when validating the password (which works on yahoo webmail and on the iPhone so I know it's right).
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