1. Select Settings from the home screen of your iPhone
  2. Select Mail, Contacts, Calendars.
  3. Click on Add Account
  4. Choose Other from appeared list
  5. Select Add Mail Account
  6. Specify the following details:

    Name
    : your name, it will appear as a sender name
    Address: your FULL email address
    Password: your password of this email address
    Description: you can specify any description. But we advise you to specify your email address
  7. Select IMAP as the protocol type
  8. Specify the following email configuration:

    Name, Address and Description
    : these should have been already filled in.

    INCOMING MAIL SERVER:
    Host name
    : yourdomain.com
    User Name: your FULL email address
    Password: your password of this email address

    OUTCOMING MAIL SERVER:
    Host name
    : yourdomain.com
    User Name: your FULL email address
    Password: your password of this email address
  9. Select Next to continue
  10. Click on Save and wait till checking is finished. When the check is finished you will be redirected to Mail, Contacts, Calendars screen.
  11. Select your newly created account and go to Account Info. Scroll down the screen and select Advanced.
  12. Specify the following email configuration:

    SSL: OFF
    Authentication: Password
    Server Port: 143
  13. Return to previous menu Account Info and then select Outgoing Mail Server via clicking on SMTP yourdomain.com.
  14. Select the Primary Server
  15. Specify the following email configuration:
    SSL: OFF
    Authentication: Password
    Server Port: 587
  16. Select Done to return.
  17. To test you new email account, go to Messages and try sending and receiving emails.