Accept Or Decline Task Assignment. Simply From the reading pane choose Accept or Decline. When I send them assigned tasks or them to me the message is cut off and there is not accept or reject button.

If taking on the new project means neglecting all your other work say no to your boss but explain why. Assigning tasks in Outlook You can assign tasks to other people using Microsoft Outlook. He or she may decide to lighten the rest of your workload to free up your time.
Reject the task and provide a reason if you cannot work on that task.
Open the assigned task you want to send a comment about. Tasks sent from Exchange server account to parallel IMAP server account are shown as simple e-mail messages. He or she may decide to lighten the rest of your workload to free up your time. Accepting Rejecting and Delegating a Work Assignment.