From the home screen

  • Tap Settings
  • Tap Mail, Contacts, Calendar
  • Tap Add Account …
  • Press Microsoft Exchange

Fill in the following fields:

Email address and username with your email address
And fill in your password

Press Next
Once the parameters are accepted, the mobile asks for the server address.

Press Next

Select what you want to synchronize and press save.
Your exchange account is now configured on your iPhone.