This task can be synchronized with MS Exchange account. You can create task, revise it
and delete it in MS outlook or MS Office Outlook Web Access.
To Synchronize MS Exchange
1 From the Home Screen, Tap > > Apps tab > Settings.
2 Tap General tab > Accounts & sync > Add account.
3 Tap Microsoft Exchange to create Email address and Password.
4 Make sure if you checkmark Sync task.
※ NOTE: MS Exchange may not be supported depending on email server.