Until last night everything worked just fine. Today, without any update from Thunderbird or Bitdefender or Windows 10, I cannot sent or receive any email from my @gmail.com account. The error message is not always the same. Sometime it says "could not connect to mail server imap@gmail.com; the connection was refused", others "the message could not sent because the connection to SMTP smtp.gmail.com timed out. Try again.", etc. I already reinstalled TB (fully purged), re-login after 2-3 failed attempts, because I was receiving a "wrong password or configuration" message. Any ideas on fixing this?