dmarcian - Safeguard your email from abuse
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
Proofpoint - Proofpoint provides cloud-based email security, e-discovery and compliance solutions for companies to protect sensitive business data.
Symantec Data Loss Prevention - Fully protect your data with the comprehensive detection technologies and unified policies of Symantec's industry leading Data Loss Prevention (DLP).
Mimecast Gateway - Mimecast Gateway is a SaaS-based email security solution that uses sophisticated, multi-layered detection engines and intelligence to protect email data and employees from malware, spam, advanced threats and zero-day attacks.
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.