Mail.app syncing

I use Mail for all my accounts (Gmail, Yahoo and Hotmail), but I often get this window asking me to retype all the passwords for my Hotmail accounts, I get it like once a day and it's very annoying because I have to type it or it will not sync anymore.
None of my other accounts do that, what is wrong with Hotmail? I tried looking for a solution but not a lot of people seem to have the same problem.

 

I'm gonna try, but I don't think it will work since it's 3 accounts that it's rejecting, not 1.