Thunderbird quit working
Yesterday Thunderbird stopped receiving or sending emails. When I attempt to send emails, the following comes up: "Login to server outbound.att.net with username [email protected] failed." The box also asks for a password; I tried all passwords I thought might be relevant (about 10), but nothing worked. What can I do? I can receive emails at [email protected], but of course that email program is not as useful as Thunderbird.