How to change an email password on iPhone or iPad (iOS)Many people who can not send email from the iPhone or iPad, but can receive emails normally , these problems are caused by the following reasons.
1. Email password has been changed, but the user didn’t change the password on iPhone or iPad, usually caused by input password is incorrect.
2. Insert the wrong password, while you are adding an account.
|The user name or password for 'SMTP' is incorrect.|
How to change the email password on iPad
|Mail, Contacts, Calendars > Account|
|Tap on 'SMTP'|
|Tap your SMTP server|
|Change your correct password|