PSB E-mail and Server Security protects Microsoft Exchange servers from viruses, worms and Trojans, scanning both incoming and outgoing messages. The product scans not only e-mail attachments, but it also stops viruses in documents and notes posted to public folders. With E-mail and Server Security, antivirus protection is transparent and always on as the scanning is done on the e-mail server in real-time. In addition to virus protection, the solution provides spam filtering and other content filtering functionality.