On your device open Settings, then scroll down and select mail
Select Accounts then Add Account.
Then select Other.
Next, choose to Add Mail Account. You will be prompted to enter your Name, Email, Password and Description.
Select IMAP for your mail server. Below you will be required to enter the Host Name ,Username and Password for both the incoming and outgoing mail servers (fill everything in). Incoming and outgoing should be the same.
Host name: Server
Username: your full email address
Password: should be the same everywhere
|Important: iOS may suggest that these fields are optional, however they are required when adding your hosted email. Please be sure to add your username and password for both mail servers.|
Click Next to proceed. In the event that your port numbers do not automatically populate, use Incoming port 143, and Outgoing (SMTP) port 587.
Your hosted email address has now been configured to your Apple device.