I keep getting a message on my iPhone5 saying that it cannot get mail
MY email has been working fine until today and is still working on my iPad and MacBook but I keep getting a message on my phone that says my username or password are incorrect. Have deleted twice and reinstalled (carefully) but each time I get a message that says it may not work because the username or password are incorrect...they're not! Any ideas please?
iPhone 5, iOS 8.4