Tap Settings > Mail, Contacts, Calendars > Accounts > Add account > Email.
In the Add Account page, tap Exchange.
Enter your full email address, for example email@example.com, and your Trojan Web Express password, and then tap Next.
By default, Mail, Contacts, and Calendar information are synchronized. Tap Save.
If you're prompted to create a passcode, tap Continue and type a numeric passcode. If you're prompted and don't set up a passcode, you can't view this account on your device. You can also set up a passcode later in your settings.