Calendar lets you to create an event from the contents of a message. The attributes for the email are automatically populated from the message.
The parts of the message are assigned to various attributes of the event. When you create an event from a message, you are the organizer of the event. The To and Cc recipients are assigned as the participants of the event. They are invited when the event is created. The subject of the email is the title of the event. The message body is the description of the event.
To create an event from a message: