Step 1: Click at the Settings icon.
Step 2: Scroll down a bit then you will see “Mail, Contacts, Calendars”, tap it.
Step 3: Tap on the “Add Account…”
Step 4: Scroll down to the bottom and tap on “Other”
Step 5: Tap at the “Add Mail Account”
Step 6: Fill in the related information as below accordingly and tap “Next”. (P.S. the Email field has to be the full email address)
Step 7: Select IMAP and follow by fill in all information as below, then tap on “Next”.
Step 8: Click “Continue” when you saw this.
Step 9: Then you will see the screen as follow; tap on “Save” button.
Step 10: Mail account is successfully setup. You will see your domain email appear on your email account list.
Step 11: Return to your Home screen and tap on the “Mail” icon.
Step 12: Now you will see your domain mail account appear in your “Mail” app.