EnGarde Cloud Email Security by Guardian Digital Inc. is a managed, cloud-based email security gateway that functions as a supplementary security layer for cloud email infrastructures, including Microsoft 365 and Google Workspace. Built on the EnGarde Secure Linux platform, it combines open-source technologies like SpamAssassin and Snort with proprietary algorithms. The system utilizes artificial intelligence, machine learning, and behavioral analysis to inspect email attributes in real-time, such as content, sender reputation, and embedded URLs. Its purpose is to detect and block threats including business email compromise (BEC), phishing, ransomware, and zero-day exploits prior to delivery.
The platform provides multi-layered defense through inbound and outbound protection, dynamic URL and file analysis with cloud-based sandboxing, and end-to-end email encryption. It enforces standard email authentication protocols like SPF, DKIM, and DMARC to verify sender identities. Delivered as a fully managed Security-as-a-Service (SaaS) model, the solution includes continuous system monitoring, administration, and threat analysis. A centrally managed dashboard offers real-time visibility and reporting on email-based threats.
