From the home screen, tap Settings, then select Mail, Contacts, Calendars.
Tap Add Account
Select Microsoft Exchange
Bow you have to enter the data of Professional Email
In E-mail field enter your email address (eg: email@example.com).
In Password field enter the password you have chosen.
In Description field enter the name you want to identify the email in your device.
In Server field enter pim.register.it
In Domain leave Optional (don’t’ do anything)
Select the items you want to synchronize (basically ALL) and tap Save