This message will be sent if an approver denies an event that has been added to the calendar AND:
You are an approver for the calendar.
You can edit your Email preferences so that you only receive these messages when a specific instruction or comment is made. To do this, login to the calendar system and select the Toolbox Icon | Preferences from the menu and check the option: "Disable Empty Approval Messages".
Note that if the approver puts in some comments as part of the approval process, you will ALWAYS receive this message.
You are the creator of an event.
See the instructions above to disable this message.
Your Email address is used in the event's Contact Info
If you have a calendar login, you can disable this message using the instructions above. If you do not have a calendar login, you will always receive this message.