Your email provider can help you verify your email settings and make sure that you're using the correct password. If Mail still asks for your password, the password is probably incorrect. Depending on the type of email account you're using, you might be able to correct the password as follows. Mail asks for your password when it can connect to your email provider, but can't connect to your email account because your email provider isn't accepting your email password. If your Mac is connected to the Internet but suddenly starts asking for your password, you should generally try again later, and if necessary work with your email provider to resolve. Mail may say that it can't connect to your email account, and repeatedly ask you to enter the password for it.
