Recently I had a problem with email. I prefer using Mozilla Thunderbird as my email client; however, in going through problem identification and resolution, I deleted all accounts in TB (thinking there was a corrupted profile) then removed and reinstalled a fresh copy of TB. Afterwards, I have been unable to add any account to TB with POP3 mail handling protocol selected. I can add them if I choose IMAP protocol. It appears that in the last step of creating an account in TB, when it attempts to validate username and password, the process fails. It doesn't seem to matter what domain supports the email; I've tried my ISP, gmail, and IONOS; all fail at that final verification step.
I've placed questions on Mozilla Support, but they have not been produced any answers despite my having captured and supplied error console contents after various failures. I've also done countless online searches. I've seen a few reports of problems with TB account set up but none that mimic the ones I've encountered.
Has anyone else experienced a problem like this with Thunderbird? If so, did you resolve it? And, how did you resolve it? I much prefer to have TB download my email and remove it from the domain servers; ergo the choice of POP3 protocol.
