my personal e-mail is @msn.com; been using it with Thunderbird for years, but lately it asks continually for my password and tells me login (imap/outlook) has failed. It's been getting more frequent and today after multiple attempts, and restarting my computer it still didn't work. I am able to use my password to sign into my msn.com account and see the e-mails using the mozilla browser (or chrome) but can't sign on at Thunderbird. I have another e-mail address in Thunderbird (at my own domain) and there have been no issues with that address. However, if I am looking at my personal/msn e-mails, then go to the other inbox and return to the msn inbox I am usually asked (repeatedly) for the msn password and login fails. The problem started a couple of weeks ago and has grown progressively worse/more frequent. Any ideas on what happened/changed and what I can do?