End-users can access their quarantined emails via a web interface. This allows them the ability to view the spam emails that were blocked by SpamFilter, and to force the delivery of any valid email that was blocked by mistake. It is to be noted that once a user forces the delivery of an email from the quarantine, SpamFilter will automatically match the sender with the recipient. From then on, all future emails from that sender to that recipient will be automatically whitelisted. This will greatly reduce the risk of blocking valid emails in the future.
Related feature: Microsoft Outlook Integration