SonicWall Email Security appliances and software provide multi-layered protection from inbound and outbound email threats and compliance violations by scanning all inbound and outbound email content, URLs and attachments for sensitive data, delivering real-time protection against ransomware, targeted phishing, spoofing, viruses, malicious URLs, zombies, directory harvest (DHA), Denial of Service (DoS) and other attacks. The solution leverages multiple, patented SonicWall threat detection techniques and a unique, worldwide attack identification and monitoring network.