I want to use Thunderbird for making backups. This is a read-only operation and does not require an outgoing mail server.
Thunderbird, however, apparently feels it knows more about my needs than I do and disables the button I need for adding a POP3 account until a working, tested (!) SMTP server is added:
I'm about ready to stab my computer screen out of frustration. How do I regain control?
Please don't ask me to use a different mail client. I understand that there are a variety of alternative methods for performing email backups, but I specifically want a solution that uses Ubuntu's default, officially supported application.