Click the New Task link to create a new Task item. The page used to compose a Task is a modification of the E-mail composing page.
The Task Composing page contains the controls used to specify the start and Due dates of the Task, the Task completion status and its priority:
You can specify the time when the Task starts, and when it is due.
The Options panel allows you to specify the Task options:
The Task Priority can be High, Normal, or Low.
You can specify the completion status of the Task. If you set the Complete setting to 100%, the Task is marked as completed.
If you select the Private Item option, this Task will be invisible for other users who have access to your Tasks Mailbox.
You can specify the Task Subject (Summary). The Subject text is used to display the Task on the Task list page.