Best Secure Email Gateway Software

Compare the Top Secure Email Gateway Software as of December 2025

What is Secure Email Gateway Software?

Secure email gateways protect organizations from email-based threats such as phishing, malware, spam, and data breaches. They analyze incoming and outgoing messages to detect suspicious content, malicious attachments, and unauthorized data sharing. These gateways enforce email security policies, filter harmful traffic, and provide encryption to safeguard sensitive communications. Many platforms also integrate with cloud email services like Microsoft 365 and Google Workspace to extend protection across hybrid environments. Ultimately, secure email gateways help maintain compliance, protect confidential information, and ensure safe, reliable business communication. Compare and read user reviews of the best Secure Email Gateway software currently available using the table below. This list is updated regularly.

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    Comodo Dragon Platform
    Our completely cloud-native framework delivers you zero day protection against undetectable threats while defending your endpoints from known threat signatures. Comodo introduced a new approach to endpoint protection, engineered to solve the issue of legacy security solutions. The Dragon platform delivers the foundation principles for complete next-generation endpoint protection. Easily improve your cybersecurity and performance with the Dragon Platform's lightweight agent delivering artificial intelligence (AI) and Auto Containment to stop all threats. Comodo delivers everything cybersecurity you ever needed to activate breach protection immediate value added from day one. 100% trusted verdict within 45 seconds on 92% of signatures via analysis, and 4 hours SLA on the remaining 8% via human experts. Automatic signature updates that simplifies deployment across your entire environment to lower operational costs.
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