Mail App And Pop Email Account Setup

Just for fun, I am trying to set up my pop3 email account on the application called Mail in Windows 10. I have succeeded in having my MSN and Gmail accounts working in the application, but when attempting to set up my pop3 mail, it will show a triangle with an exclamation point inside it. When I click on it, it opens up an Attention Required with a User Name and Password. Each time I type in the password for the pop3 email account, it still fails to sign on and says "Your [provider] account settings are out-of-date."

I have also tried adding the account under settings>accounts>your email and accounts, and it still says attention required. when I click on manage, the password is too long for it to be the account password. I try retyping in the account password and saving it but it still changes.