A few people are having problems having their Yahoo mail account set up so heres the fastest way to fix the problem.
1. Go to Settings
2. Then select "Mails, Contacts,and Calenders"
3. Add account
4. Select "Other" and select "Add Mail Account"
5. add your Email and password
To set up Internet Message Access Protocol (IMAP) on your mobile device, please use the following settings:
Incoming Server -
Host Name: imap.mail.yahoo.com
User name: ("your Email" @yahoo.com )
Password: (Your email password)
Outgoing Server -
Host Name: smtp.mail.yahoo.com
User Name: ( "your Email" @yahoo.com )
Password: (Your email password)