Thunderbird won't show or send message. Microsoft suddenly requires a second email address.
Thunderbird won't work anymore. Microsoft message requiring that I add another email address in case I can't access email account. I don't want to use other email address, but there is no other option to this message.
Thunderbird won't work anymore. Microsoft message requiring that I add another email address in case I can't access email account. I don't want to use other email address, but there is no other option to this message.