My Outlook mail client was working fine yesterday & today when I attempt to send an email with Thunderbird I get an error message & asked to input my password. I enter the password for Outlook mail and then get the same error message. I delete the Outlook email client and re install and it doesn't matter the same thing happens again and again. I've read few remedies on the forum, I am able to receive mail but not send. Is there a work around for this?