How to Set Up Company Email on Iphone

Go to Settings -> Mail, Contacts, Calendars -> Select Add Account -> Select Exchange
Enter Email address and Email Password.
Description - Enter Richsmith Email
Click Next, your account should authenticate. Then click save.

NOTE: If you have another email account on your phone, you may or may not want to change your default email account, default calendar account and default contacts account.
This is done from the Mail, Contacts and Calendars Section of Settings.