To enable or disable a report delivery:
The Deliveries of reports by email window opens. The window displays the list of the report deliveries that you have configured.
Occasionally, the Status column may contain the Unavailable value. This happens when the report delivery contains no reports or no recipients (for example, all of the recipients that you specified in the delivery settings have been removed from Management Console). In this case, the report delivery is disabled but you cannot enable it. Modify the delivery settings or delete the report delivery if it is not needed any more.
The report delivery is enabled. Now, reports are sent according to the delivery settings.
The report delivery is disabled. Now, reports are not sent.