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Email Security

Stops phishing, business email compromise, ransomware, and spam, and enhances Office 365 email security. It just works.

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Advanced email security protection

Attackers rely primarily on email to distribute spam, malware, and other threats. To prevent breaches, you need a powerful email security solution.

Cisco Email Security is your defense against phishing, business email compromise, and ransomware. Get threat intelligence updates every three to five minutes through Cisco Talos for the most up-to-date protection.

Cisco Advanced Malware Protection protects against stealthy malware in attachments, and industry-leading URL intelligence combats malicious links. Cisco Email Security also enhances Office 365 email security.

Protecting outgoing email is important too. Cisco Email Security has robust data loss prevention and content encryption capabilities to safeguard sensitive information. This helps you comply with government and industry regulations.

Busted: Cloud email myths

Our new findings challenge assumptions about email security.

New capabilities to protect your users and brand

Two new capabilities help block phishing emails from reaching your users and safeguard your company's domain. Gain additional layers of protection against business email compromise (BEC).

Cisco Advanced Phishing Protection (PDF)

Detect fraudulent senders with threat intelligence that adapts in real time to block BEC and advanced phishing attacks.

Cisco Domain Protection (PDF)

Prevent attackers from using your domain to carry out phishing campaigns.

With our two new services, harness local threat intelligence to block fraudulent senders, and gain control over who uses your domain. 

What's new with Email Security? Learn about new features, product integrations, and more.

Features and benefits

Protect users from email threats

See how our multilayer approach to security keeps attackers out of your users’ inboxes.

Enhance email security for Office 365

Gain a robust layer of defense against ransomware, business email compromise, phishing, and more. See why Cisco Email Security and Office 365 are better together.

Beyond point-in-time detection

Protect against risky files, whenever they turn malicious, with Cisco Advanced Malware Protection for Email. 

Get exceptional threat intelligence

Only Cisco can provide exceptional threat protection from Talos, one of the world’s largest threat intelligence teams. Updates flow automatically every three to five minutes.

Block advanced phishing attempts

Protect users from fraudulent senders with real-time threat intelligence.

Establish trust before granting email access

Verify users' identities with the world's easiest multifactor authentication to protect against phishing.

Your help centre for Office 365

Migrating to the cloud gives you more flexibility, but it comes with security drawbacks. Use the resources below to learn the key features that your cloud email security approach should include.  

Vulnerability snapshot (PDF)

View our infographic and see why Office 365 customers choose Cisco Email Security for an additional layer of security.

Buyer's guide (PDF)

Cut through the marketing mumbo jumbo. Learn the five product features you actually need.

Expert advice

Find out how you can better protect against ransomware, business email compromise, phishing, and more.

Office 365 case studies

Our customers love Cisco Email Security and the impact it has had on their businesses. Read their case studies to learn how they tackled phishing, ransomware, spam, and more. 

The NHS needed an integrated cybersecurity approach. Cisco AMP and Email Security provided the health check for their security architecture.

Phillip was an IT department of one. See which products he picked to ensure automation and simplicity for his growing team.

In their struggle against malware and malicious links, this nonprofit turned to Cisco Email Security and AMP to protect users.

This Scottish partner needed a solution to protect customers from phishing and email attacks. It chose Cisco to protect itself and its clients.

Featured third-party reports and recognition

Cisco Email Security named a Leader in Forrester Wave 2019

This Forrester report evaluates the 12 most significant enterprise email security providers.

Forrester Now Tech report

Forrester analysts reveal the impact of phishing and the benefits of having a strong email security posture.

Cisco named market leader

For the third year in a row, Cisco Email Security is named the market leader in Secure Email Gateways.

More in-depth analyst analysis (PDF)

Take a look at the latest ESG Solution Showcase on Cisco Email Security.

Featured offers

Get a free 45-day trial

Take our solution for a test drive with this exclusive offer.

Free health check

Our experts can help you get the most out of your investment in Cisco Email Security.

Threat of the month

Go phish

Why did we call out phishing for our threat spotlight? Discover why the stakes are higher than ever.

Live phishing webinar

Our live panel dives into why phishing is so successful and what you can do about it.

You may also be interested in …

Safeguarding your data

Protect confidential information in transit. Keep intellectual property, financial information, and other sensitive data safer.

Advanced Malware Protection

Stop ransomware and malware. AMP for Email Security adds advanced threat capabilities and outbound protection.

Preventing business email compromise (PDF)

Learn how to stop this $5.3 billion threat with our experts' advice.

Protecting information in transit

Cisco Registered Envelope Service helps ensure important messages comply with industry standards and protect confidential data in outbound email.


Cisco's flexible new Security Choice Enterprise Agreement provides security with more simplicity, greater value, faster responses, and predictable billing.

For partners

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Looking for a solution from a Cisco partner? Connect with our security technical alliance partners.