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Cisco Email Security Appliance

Industry-Leading Email Protection

Keep your critical business email safe from spam, malware, and other threats. Our industry-leading solution gives you faster, more complete email protection to stop email-based threats and provide continuous protection before, during, and after an attack.

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Video Data Sheet

Manage graymail, track clicks on malicious URLs, and more with AsyncOS 9.5. (6:27 min)

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3 Ways to Try Email Security Free

See how it works through 45-day evaluations, daily webinars, and instant demonstrations.

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Features and Capabilities

Threat-Centric Security

The Email Security Appliance is the industry's first proven zero-hour antivirus solution. It offers a best-in-class capability to control and encrypt sensitive outbound email. At the same time, its layered defense, built into a single appliance, quickly blocks incoming attacks.
It provides:

  • Contextual analysis against phishing and snowshoe spam attacks
  • A superior spam-capture rate (more than 99 percent) with few false positives (less than one in one million)
  • File reputation, dynamic analysis (sandboxing), and retrospective security with Cisco AMP Threat Grid
  • Graymail management and web interaction tracking

Easy Installation and Management

The appliance requires little ongoing administration, with a low network impact. Our global security support centers provide 24-hour support and have won 10 awards for service from J.D. Power and Associates.

Continuous Innovation

Our commitment to email security can be seen in our innovative offerings. You have a choice of on-premises, cloud, hybrid, and virtual deployments.

Real-Time Threat Intelligence

The Email Security Appliance is powered by the Cisco Talos Security Intelligence and Research Group. The Talos threat intelligence detects, analyzes, and protects against both known and emerging threats. It accomplishes this by aggregating and analyzing Cisco's extensive telemetry data including:

  • Billions of web requests and emails
  • Millions of malware samples
  • Open-source data sets
  • Millions of network intrusions

Talos offers a holistic understanding of threats, their root causes, and scopes of outbreaks. Cisco Email Security products are dynamically updated with this information every 3 to 5 minutes, giving you superior email protection.

Specifications at a Glance

Deployment Model Description
Large enterprise Cisco ESA C680 High-performance, comprehensive security at the network gateway for service providers and large-scale enterprise email systems.
Midsize enterprise Cisco ESA C380 Built on the latest generation of appliance hardware.
Small to midsize businesses or branch offices Cisco ESA C170 Cost-effective email security designed for small businesses, branch offices, and organizations with fewer than 2000 users.*

*For accurate sizing, verify your choice by checking the peak mail flow rates and average message size with a Cisco content security specialist.

Product Support Services

Cisco Services can help you increase operational efficiency, lower support costs, and improve availability risk management.

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Learn How You Can Be Protected

See what problems the Email Security Appliance solves, and how it solves them. (PDF - 661 KB)

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Cisco's Anti-Spam Dominates

Opus One 2015 anti-spam efficacy report names Cisco the market leader in anti-spam.

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Stay Ahead of Advanced Threats

Cisco Email Security Appliance protects your network around the clock. (3:27 min)

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Additional Resources

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