You can accept or decline appointments, all day events, and tasks that are sent from Internet-enabled collaboration clients. Some of these clients include Microsoft* Exchange, Lotus Notes*, and Macintosh* iCal.
Open the appointment, task, or reminder note.
Click or on the toolbar.
(Optional) You can type a comment, then click or .
By default, a message is sent back to the sender of the item, indicating the action you took.