After installing iOS 8.3, why am I having problems signing in to my email account?

[iMore Question]

Since downloading IOS 8.3 my E Mails will not update. Message says either name or password incorrect. There are not but I have re-input info but no success. Any ideas?

 

[Just_Me_D]

Do you have 2-step authentication set up for the email account. If so, you may have to use the "app passcode" that you created instead of the "email account passcode".