"Sending of password for user XXXX failed..."
I'm running Ubuntu 18.04. Would update to latest Ubuntu LTS but our internet is really slow and it's capped. Thunderbird version 91.9.1. I use TB to retrieve/send emails from two Gmail accounts. Both are set up as POP. This morning TB failed to get email from the second email account. First error message is "Sending of password for user XXX did not succeed. Mail server pop.googlemail.com responded: Username and password not accepted." I clicked OK, got second message. "Login to server p