Emails from the quarantine can be checked by the administrator before being delivered to the actual recipient.
The button for the admin delivery is located in the action menu, first click on the button with the 3 bars and then select the emails to be checked. These can then be sent to the stored admin mailbox by clicking on the "Send email to admin" button.
Currently the "Admin Postbox" can only be changed via the Flash Control Panel. In the management area of the control panel, switch to the item Settings -> Data. The email address configured there will receive the emails delivered by "Send email to admin" Button.