Connect an Email Account on your iPhone
Step 1:
On the home screen, locate and tap settings
Step 2:
Locate Passwords & Accounts. You will then select "Add Account"
Step 3:
Tap Exchange from the Add Account section which will then take you to the account login screen. Enter your Katmai email address with your password (Test@katmaicorp.com) (Password: 123456)
The Description can be used to help you locate your different email accounts. For example, we would put (“Work”) for this one.
After selecting Next your email will be setup and ready to receive/send