SonicWall Email Security appliances are ideal for organizations that need a dedicated on-premises solution. The hardened Linux-based appliance defends against advanced email-borne threats such as ransomware, zero-day threats, spear phishing and business email compromise. Our multi-layered solution provides comprehensive inbound and outbound protection, and is available in a range of hardware appliance options that scales up to 10,000 users per appliance.
Available as a physical or virtual appliance, software, or as hosted email security.
More information: https://www.sonicwall.com/en-us/products/secure-email