To add your Hosted Exchange mailbox on an iPhone or iPad:
- Select "Settings" from the home screen.
- Scroll down, and select "Mail".
- Select "Accounts" > "Add Account".
- Select "Exchange".
- Enter your email address. For "Description", enter 'Exchange'. Click "Next".
- Enter the password for your email account, and then click "Next".
- Toggle the options you wish to sync, and click "Save".
- Your iPhone or iPad will begin to sync with Hosted Exchange.
- You can access your mailbox from the home screen by selecting "Mail".