At first, you need to press the 'Home' button. After that, users need to tap on the 'Settings' option. Next, you need to tap on the 'Mail, Contacts, Calendars' option. Then, you need to tap on the 'Add Account.' option. Then, you need to choose their email account type by tapping on ‘’Select your email account type’’ option. If you have any doubt then you can clear it through Optus customer support phone number
from the experts. You need to tap on the 'Other' option for Optus email. Then, you need to enter their name so that it appears on outgoing emails in the 'Name' field. Finally, you will have the correct Optus email set up in their iOS device.