Email doesn't work on iphone since I changed password?

Email doesn't work on iphone since I changed password?

Added (1). Domain error 1032

My iPad Mini also seems to be having problems. It hasn't refreshed and shown any spam since 7:50 a.m. And I KNOW that's not right. Also, someone has been trying to email me (hence why I'm checking spam) and hasn't been able to get the email through to me.