Host Name: This is typically your domain name preceded by "mail.". This can be found in the E-mail Accounts section of the cPanel, underMore > Configure Mail Client.
User Name: Your email address.
Password: The password for your email address.
Outgoing Mail Server
Although iOS may indicate these fields as optional, please enter your full email address and password
Host Name: This is the same as the incoming server.
User Name: This is required and again is your email address.
Password: The password for your email address.
Tap Next.
Cannot Verify Server Identity
This error message it is due to the SSL certificate being used for the mail server is *.BlueHost.com. To use the SSL Certificate simply click Continue.
Mail and Notes
The final screen will ask if you want mail and notes turned on for this account. Leave them both on and tap Save.
Leave Mail and Notes set to on.
Tap Save.
How to store Sent, Drafts and Trash on the server
To do this please go to Settings > Mail, Contacts, Calendars
Choose your email account
Tap Advanced
Under Mailbox Behaviors choose the mailbox you wish to configure.
Choose the corresponding folder on the server you wish to save the email in.
Repeat the above steps for any other folders you wish to store on the server.