Mimecast Advanced Email Security is a cloud-based email security system that provides multiple layers of protection against email-borne threats. The system functions as a mail transfer agent that serves as a security gateway in the cloud. It blocks spam, viruses, and malware using multi-layered detection engines and threat intelligence. The solution scans emails, attachments, and URLs to detect and prevent impersonation fraud, ransomware, phishing and spear-phishing attacks. It uses AI-driven detection to identify sophisticated threats and includes sandboxing capabilities to identify evasive threats. The system provides on-click protection and computer vision to identify branding and login page impersonation. It includes data loss prevention features with scanning and quarantine capabilities to prevent information leaks. The solution supports Microsoft 365, Google, on-premise and hybrid environments and is designed for deployment and management in cloud environments.