MetaDefender Email Gateway Security Reviews & Product Details

MetaDefender™ Email Gateway Security is OPSWAT’s on-premises email gateway security solution for protecting organizations from phishing, ransomware, zero-day, and AI-generated email threats. It is built for enterprise, regulated, and critical infrastructure environments where teams need advanced email protection, encrypted and password-protected attachment inspection, policy enforcement across IT and OT workflows, and support for on-premises, disconnected, and air-gapped deployments. MetaDefender Email Gateway Security is deployed at the SMTP/MX level and provides security across inbound and outbound email workflows. It applies Metascan™ Multiscanning, Deep CDR™ technology, AI-powered malware analysis through Predictive Alin AI, MetaDefender Aether™ emulation-based sandboxing, phishing and spam detection, and Proactive DLP™ to identify sensitive information across email workflows. The solution takes a prevention-first, layered approach to email security, inspecting links, attachments, and message content before delivery. It applies deeper analysis when risk warrants it, helping legitimate email move efficiently while subjecting suspicious content to additional scrutiny. MetaDefender Email Gateway Security also addresses the risks associated with encrypted and password-protected attachments. It can locate passwords included in the email body and automatically inspect, sanitize, and sandbox protected files. If a password is unavailable, the user can provide it through a self-service portal, enabling further processing without requiring manual validation from IT or SOC teams. For data protection and governance, Proactive DLP™ can detect and redact sensitive information, such as PII, PHI, and credentials. Centralized policy controls, reporting, audit trails, and documented inspection and sanitization outcomes help organizations demonstrate control effectiveness and support compliance initiatives, including GDPR, DORA, and NIS2. The solution integrates with Microsoft Exchange Server, Microsoft 365, Google Workspace, MetaDefender Managed File Transfer, and any SMTP-based email gateways and mail servers. It can be deployed in front of existing mail servers or as an additional security layer alongside an existing email gateway, allowing organizations to strengthen protection without replacing established platforms or disrupting email workflows. Results include a 99.98% detection rate for spam and phishing attacks using on-arrival and time-of-click analysis from 30+ online sources, more than 99.2% malware detection through 30+ anti-malware engines, Deep CDR support for over 200 file types, MetaDefender Aether™ zero-day detection of over 99%, Predictive Alin AI verdicts in less than 100 ms with a 0.1% false positive rate, and Proactive DLP redaction and anonymization across 125+ file types.