To synchronize MS Exchange
From the Home screen, tap the Apps Key
> Settings 
> Add
account (under the Accounts section).Tap Microsoft Exchange, then sign-in using your Email address and Password.
Checkmark the Tasks checkbox.
From the Home screen, tap the Apps Key > Settings > Add
account (under the Accounts section).
Tap Microsoft Exchange, then sign-in using your Email address and Password.
Checkmark the Tasks checkbox.