Email Security Built on 20+ Years of Critical Infrastructure Expertise
Inspect, sanitize, and control malicious emails, attachments, and links before they expose users to phishing, malware, or zero-day threats.
- Flexible Deployment
- Prevention-First Security
- Deep File Security
OPSWAT is Trusted by
Attacks Engineered to
Bypass Traditional Email Security
Government
Government and public sector organizations rely on email to coordinate essential services. A missed threat can trigger malware execution, credential theft, operational disruption, and loss of public trust.
Defense
Military, defense, and aerospace teams exchange sensitive emails and attachments across confidential, secret, and top-secret environments where a single mishandled or malicious attachment can breach classification boundaries, violate release policy and expose mission data.
Banking
Banking, financial services, and insurance companies depend on email and collaboration channels to move customer files, payment approvals, and operational communications. Attackers use legitimate-looking messages and files to steal credentials and deliver malware, causing operational disruption.
Manufacturing
Manufacturing facilities depend on email for orders, supplier files, engineering data, and production workflows. Phishing or malware entering through email can stall systems, disrupt production lines, delay deliveries, and create financial losses.
Energy
Energy and utilities organizations rely on email for maintenance records, operational reports, and regulatory evidence. A malicious file can affect resilience, uptime, and compliance readiness.
Prevent Email-Borne Threats with MetaDefender™ Email Security Before User Exposure
Combine Deep CDR™ Technology, Metascan™ Multiscanning, MetaDefender Aether™, Proactive DLP™ and anti-phishing to reduce exposure to email-borne threats.
Government and Public Sector
Reduce exposure, limit operational impact, and keep essential services running with layered email protection for government and public sector communications across Microsoft 365, on-premises, and air-gapped environments.
Military, Defense and Aerospace
Control what moves between official, secret, and top-secret environments with classification-aware inspection, policy-based release, and attachment sanitization.
Banking, Financial Services, and Insurance
Protect the communications behind customer files, payment approvals, and financial operations from credential theft, malware, phishing, and sensitive data loss.
Manufacturing
Prevent phishing and detect malware before email-borne threats disrupt orders, production systems, or plant operations across industrial equipment, aerospace and defense organizations, helping reduce downtime, missed deliveries, and financial losses.
Energy and Utilities
Protect maintenance records, regulatory evidence, and communications for electric utilities, oil and gas, nuclear, and renewables environments across cloud, and on-premises deployments.
Use Cases
Prevent Phishing Before Inbox Delivery
Detect phishing attempts, malicious URLs, spoofed domains, and socially engineered messages before users engage with them, helping reduce credential compromise, account takeover, and business disruption.
Prevent Malware and Zero-Day Threats
Analyze and sanitize email attachments for malware, and zero-day threats, helping reduce exposure before malicious content reaches users or business-critical systems.
Disarm Potentially Malicious Attachments
Apply Deep CDR™ Technology to inspect, reconstruct, and sanitize attachments, including password-protected files, so teams can continue using business-critical documents while reducing file-borne malware risk. Escalate suspicious, non-sanitizable, or policy-sensitive files to MetaDefender Aether for Pre-Execution prediction and emulation-based behavioral analysis.
Enforce Compliance and Protect Sensitive Data
Apply DLP, policy enforcement, and content controls across inbound and outbound email, helping support compliance, reduce data exfiltration, and simplify evidence collection.
Reduce Email-Borne Risk to Operational Environments
Help regulated and operational organizations reduce exposure to email-borne threats that can affect production continuity, uptime, essential services, compliance readiness, or OT and ICS environments.
- Phishing Protection
Prevent Phishing Before Inbox Delivery
Detect phishing attempts, malicious URLs, spoofed domains, and socially engineered messages before users engage with them, helping reduce credential compromise, account takeover, and business disruption.
- Malware Prevention
Prevent Malware and Zero-Day Threats
Analyze and sanitize email attachments for malware, and zero-day threats, helping reduce exposure before malicious content reaches users or business-critical systems.
- Attachment Security
Disarm Potentially Malicious Attachments
Apply Deep CDR™ Technology to inspect, reconstruct, and sanitize attachments, including password-protected files, so teams can continue using business-critical documents while reducing file-borne malware risk. Escalate suspicious, non-sanitizable, or policy-sensitive files to MetaDefender Aether for Pre-Execution prediction and emulation-based behavioral analysis.
- Data Protection
Enforce Compliance and Protect Sensitive Data
Apply DLP, policy enforcement, and content controls across inbound and outbound email, helping support compliance, reduce data exfiltration, and simplify evidence collection.
- Critical Infrastructure
Reduce Email-Borne Risk to Operational Environments
Help regulated and operational organizations reduce exposure to email-borne threats that can affect production continuity, uptime, essential services, compliance readiness, or OT and ICS environments.
Support Compliance Efforts with
Preventive Email Controls
MetaDefender Email Security provides preventive email controls across inbound and outbound communications, including DLP, attachment sanitization, malware detection, policy enforcement, reporting, and logs that organizations can use as evidence for auditors, helping support compliance requirements.
Stopping Threats Starts with Market-Leading Technology
OPSWAT’s proven, globally trusted, award-winning, and market-leading technology prevents file-borne malware from entering and propagating into your critical environments.
AI-Powered Zero-Day Prediction at the Perimeter
- Pre-Execution Detection & Deflection
- ML-Model trained on Enterprise File Workflows
More Engines Are Better Than One
- Detect nearly 100% of malware
- Scan simultaneously with 30+ leading AV engines
Stop Threats That Others Miss
- Supports 200+ file formats
- Recursively sanitize multi-level nested archives
- Regenerate safe and usable files
Prevent Sensitive Data Loss
- Utilize AI-powered models to locate and classify unstructured text into predefined categories
- Automatically redact identified sensitive information like PII, PHI, PCI in 125+ file types
- Support for Optical Character Recognition (OCR) in images
Detect Evasive Malware with Advanced Emulation-Based Sandboxing
- Analyze files in a high-speed
- Anti-evasion sandbox engine extracts IOCs
- Identify zero-day threats
- Enable deep malware classification via API or local integration
Integrations
MetaDefender Email Security fits into existing cloud, on-premises, and hybrid email environments with key integrations across essential platforms and solutions. This helps teams deploy email protection around existing mail flows, centralize visibility, enforce policies, and support monitoring without redesigning their security architecture.
Proven Email Security Outcomes
in High-Risk Sectors
- “Because we deployed Deep CDR™ Technology into the email channel, they [the bank] are very confident to say that there is almost a 95% reduction of malware from the email channel.”Lambert LinInformation Security Consultant
- “OPSWAT helps us prevent [files that could contain] malware from getting into the network.”Tobias MüllerTeam Leader of Technical Engineering at Luzerner Psychiatrie AG
- “During this evaluation process, OPSWAT’s MetaDefender Email Security stood out as the ideal solution due to its Multiscanning technology, seamless integration capabilities, and great user experience.”Guy ElmalemIT and Cyber Infrastructure Manager
Implementation Process
Define Your Requirements
Start by identifying the email flows, users, sensitive data, threat scenarios, and compliance obligations you need to protect across cloud, on-premises, or air-gapped environments.
Choose Your Deployment
Select the model that fits your operating environment: MetaDefender™ for Microsoft 365 for cloud protection or MetaDefender™ Email Gateway Security for SMTP-based, on-premises, or isolated environments.
Connect Your Environment
Connect the solution to your mail flow, reporting, and security operations workflows so teams can enforce policies, review quarantined content, and maintain audit-ready visibility.
Validate and Operationalize
Confirm that policies, detections, and reporting meet your requirements, then establish ownership and review cycles to keep email security aligned with operational needs.
Recommended Resources
MetaDefender for Microsoft 365
Before You Buy: 7 Email Security Questions
Email Security Compliance
Email Security for Banking, Financial Services and Insurance Companies
Email Security: A Buyer's Checklist
Email Security for Defense
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FAQs
MetaDefender Email Security is designed for regulated and operationally sensitive industries where email carries customer files, citizen services, supplier documents, operational approvals, or compliance evidence. Priority industries include government and public sector, military, defense and aerospace, banking and insurance, manufacturing, and energy and utilities.
OPSWAT helps reduce exposure to phishing, credential compromise, ransomware, malware, zero-day threats, malicious URLs, suspicious attachments, encrypted files, and sensitive data loss by inspecting, sanitizing, and controlling email content before users interact with it.
It means malicious messages, links, and attachments are inspected, sanitized, or controlled before users interact with them, reducing reliance on post-delivery detection, user reporting, and remediation.
MetaDefender Email Security helps teams apply preventive controls, DLP, malware detection, attachment sanitization, policy enforcement, reporting, quarantine history, and audit-ready logs across inbound and outbound email to support frameworks such as DORA, NIS2, PCI DSS, GDPR, and ISO/IEC 27001.
Yes. MetaDefender for Microsoft 365 protects Microsoft 365 environments without MX record changes, while MetaDefender Email Gateway Security supports SMTP-based, on-premises, and air-gapped environments that require more control over mail flow, data governance, or infrastructure isolation.
OPSWAT combines Metascan Multiscanning to detect known malware, Deep CDR™ Technology to sanitize supported business documents, and MetaDefender Aether to analyze suspicious, unknown, or evasive files that require deeper assessment.
DLP and policy controls inspect email and attachments for sensitive or regulated content, helping organizations reduce accidental or intentional exposure of customer data, citizen information, patient records, financial data, operational documents, and intellectual property.
Threat Reputation and Predictive Alin AI provide early decisions before deeper dynamic analysis is required. Only suspicious or unresolved files need Adaptive Sandbox analysis, helping preserve throughput while maintaining deeper zero-day coverage. MetaDefender Aether places Predictive Alin AI before Adaptive Sandbox specifically to make high-confidence decisions earlier and reduce unnecessary sandbox demand.
