Symantec Mail Security 8300 Series appliances feature integrated, best-of-breed antispam, antivirus, and content-filtering technologies that stop inbound and outbound email-borne threats. The new Premium Content Control add-on subscription helps mitigate risks associated with data leakage and regulatory compliance (HIPAA, GLBA, PCI). Expanded tools for managing content filtering policies, such as per-domain and policy-based TLS message encryption, incident management, keyword and regular expression scanning inside attachments, and true file typing, help administrators comply with internal and external regulations. Day Zero virus prevention helps organizations avoid downtime, while graphical message tracking enables administrators to determine easily the action taken on any email processed by the appliance. On-box connection throttling uses local reputation analysis to reduce spam and improve filtering performance by rejecting malicious senders at the IP level. Powered by the Symantec Brightmail AntiSpam engine, the Symantec Mail Security 8300 Series appliances leverage more than 20 spam prevention techniques, and can deliver an antispam effectiveness rate of greater than 97% and a 99.9999% accuracy rate against false positives. Automatic spam rule updates issued every 5 - 10 minutes require minimal administration and ensure that customers have the most effective, real-time protection from new threats. Real-time scanning, using award-winning Symantec AntiVirus technologies, protects against email-borne threats. From a single Web-based console, administrators can easily manage multiple mail scanning appliances to gain insight into trends, attack statistics, and compliance incidents. Users can control their personal spam settings via user preferences. Next-generation Symantec Mail Security 8300 Series hardware support improves performance for organizations with up to 150, 000 users.