My Nokia 920 stopped syncing my two email accouthns this morning, saying the password was incorrect and prompting for a password. The password I enteres was the correct one. I deleted both accounts and entered them again with the same result. The email accounts are POP3 accounts on hostgator using my domain names. The email accounts work fine on my computer.
I never figured out why it stopped syncing email, but I did figure out why I couldn't get the new email accounts I set up on the phone to work. I was using the wrong user name. Hostgator wants your full email address and I was using another user name. Problem solved.