Configure IEEE mail in thunderbird

  1. Tools->Account settings
  2. Create acccount
  3. mail address
  4. Select “manual config”
  5. Username:
  6. Incoming:, 993 (SSL), normal password
  7. Outgoing:, 465 (SSL), normal password
  8. Re-test (fails), but button “Advanced config” at the bottom becomes available
  9. Open “Advanced config” at the bottom
  10. Change authorization to OAuth2

thunderbird command error 12

If Thunderbird chowws “…command error 12”


by default it is TRUE. toggling it to FALSE will stop tbird from sending the “ID command”. The error seems to be happening with some servers that _claim_ to support that command but return an error when it is used.