MetaDefender Email Security

Stop Email Threats that Evade Sandboxes

MetaDefender Email Security protects against email borne threats that evade sandboxes and bypass advanced threat protection solutions such as those offered with Office 365 and G Suite. Using industry-leading multi-scanning and data sanitization, also known as content disarm & reconstruction (CDR), MetaDefender Email Security prevents zero-day attacks and unknown threats as well as providing close to 100% known threat detection, without affecting email server performance. MetaDefender Email Security also includes data loss prevention (DLP) capabilities to detect and block sensitive content in emails.


  • Neutralize Malicious Emails

    Our Data Sanitization technology, also known as Content Disarm and Reconstruction (CDR), ‘disarms’ each email body & attachment by removing all potentially malicious content. The reconstructed, fully usable email attachments are then delivered to the user’s mailbox for safe use.

  • Detect More Email Malware

    By multi-scanning emails with 30+ anti-malware engines using signatures, heuristics and machine learning, MetaDefender Email Security significantly improves detection of known and unknown threats and provides the earliest protection against malware outbreaks.

  • Protect Sensitive Information

    MetaDefender Email Security offers data loss prevention (DLP) to prevent emails with sensitive content leaving or entering the organization by content-checking the email body and attachments for credit card numbers, social security numbers, and content that matches custom regular expressions.

  • Flexible Deployment

    MetaDefender Email Security works with on-site email servers such as Microsoft Exchange, as well as cloud email services such as Office 365, G Suite, and hosted Exchange. It can also be used to enhance the security of any secure email gateway.

  • High Performance

    MetaDefender Email Security offers fast scanning without affecting email performance and is scalable to any email volume with MetaDefender’s built-in high-performance architecture and load balancing. Find out more about recommended configurations based on amount of mailboxes and email volume.

" We use OPSWAT’s MetaDefender as one of the tools in our arsenal that protects our email users against advanced malware threats. We’ve been using the product for many years now. OPSWAT’s multi-engine scanning technology is fast, easy to integrate, and has been highly effective in our pursuit of offering the best security available to our customers. OPSWAT has been a great company to work with and I highly recommend them."
Chris Cain
VP of New Technologies, AppRiver


Data Sanitization (CDR)

Sanitize over 30 common file types, and rebuild each file ensuring full usability with safe content.


Leverage 30+ anti-malware engines using signatures, heuristics, and machine learning technology for the highest and earliest detection of known and unknown threats.

Sanitize Hyperlinks

To uncover potential phishing attacks, automatically remove embedded hyperlinks in emails and display actual URLs.

Data Loss Prevention (DLP)

Content-check the email body and attachments for sensitive information before they are transferred.

Customisable Email Processing

Create a workflow between the CDR and multi-scanning actions to specify the order and process in which emails are handled.

Quarantine Emails

Block or quarantine emails, with real-time threat monitoring.

Role Based Configuration

Customizable administrative options, including Active Directory or LDAP group-based roles.