OnDNet spam protection reduced 95% of spam with 0% false positives. What does this mean? The other 5% are emails that have a medium to low spam score. Unlike other spam protection systems, OnDNet does not reject these but will keep them in a quarantine for you up to four days after the email is received at OnDNet, thus further reducing the possibility of not receiving legitimate emails.
OnDNet sends an email daily to each email account that has emails quarantined. The email includes a link to the email quarantine, to review it, follow the link. Moreover, one can fine tune the spam filters, including black listing email / domains and white listing email / domains.