What are quarantine reports?

Your "QUARANTINE REPORT" is a list of emails that are considered to be SPAM. You may open the quarantine report like any email to view the contents. Most of the entries in the report are junk mail (spam). If you do not see any valid email addresses in the report, simply delete the quarantine report. You can change the frequency of when you receive the report (default is daily), or you can simply choose to not receive the quarantine report.

For more informatrion check this website

http://www.rivnet.net/quarantine.html