Email quarantine reports daily at 4PM. If nothing is held you will NOT get a report.
You can access to the mail cleaner quarantine 24/7 here: https://wfmc1.webfeathosting.com
Login screen
Once you have successfully logged in to the mail cleaner quarantine you will be shown the following screen, listing any/all held email for the past 30 days.
*Important
Icons to take note of 
The arrow – will release the held item from the quarantine
The message – allows you to preview the message
The triangle – send a request to make an adjustment to filtering based on this message