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Cloudflare Email Security
How it works
Analyst recognition
Use cases
Effortlessly block and isolate phishing threats, including email-borne malware, business email compromise (BEC), and multi-channel (link-based) attacks — before they reach your users
Block sophisticated phishing threats, including BEC, multi-channel (such as email, messaging apps, and collaboration tools), and evasive link-based attacks, with industry-leading accuracy powered by AI.
Protect against targeted phishing attacks that use a combination of email and other collaboration apps (such as social media, Slack, Teams, SMS, etc.) to exploit users and gain unauthorized access.
Deploy inline, via API, or both—combining pre-delivery email processing, real-time link analysis, and post-delivery retractions for complete protection.
We combine AI, global threat intelligence, and expert-driven rules to detect sophisticated phishing threats like BEC. Each email is analyzed across hundreds of attributes—from sender reputation and message sentiment to conversation context. Our patented email detection fingerprint (EDF) uncovers hidden patterns across phishing campaigns. A unified detection engine merges ML scores with real-time threat signals to stop malicious emails instantly. Continuous rescans and feedback loops, supported by our AI audit models and ex-NSA and CIA security analysts, drive constant improvements in accuracy.
Cloudflare is a Strong Performer in The Forrester Wave™: Email, Messaging, And Collaboration Security Solutions, Q2 2025. We received the highest possible scores, 5.0/5.0 in 9 criteria, including antimalware and sandboxing, malicious URL detection and web security, threat intelligence, and content analysis and processing.
According to the report, "Cloudflare is a solid choice for organizations looking to augment current email, messaging, and collaboration security tooling with deep content analysis and processing and malware detection capabilities.
"Since we implemented Cloudflare we have seen a 50% reduction in the number of malicious or suspicious emails our users receive every day. That frees up multiple hours we can reinvest into other goals."
Director of Cyber Security — Werner Enterprises
Top Email Security use cases
Detect deceptive attacks that impersonate employees and vendors with the aim of stealing data and extracting fraudulent payments.
Insulate employees from malicious links, QR codes, and delayed phishing attacks that that activate after initial delivery—across email, messaging, and collaboration apps.
Defend against dangerous attachments and links that attempt to deploy malicious software on end-user devices.
Report
Discover how to preemptively protect your users against phishing, business email compromise, and email supply chain attacks.
Download this datasheet for a breakdown of included features in Email Security product packages — Advantage, Enterprise, and Enterprise + PhishGuard.
See how Cloudflare delivers an integrated, low-touch solution to protect users and data from phishing, including business email compromise (BEC) and multi-channel attacks.
Cloudflare Email Security provides advanced, AI-driven protection against phishing, malware, business email compromise, and ransomware, preventing these threats from reaching user inboxes. It uses advanced methods, including machine learning-based behavioral analysis, to block targeted campaigns against your organization.
Cloudflare boasts a 99.99% accuracy rate in detecting sophisticated phishing threats, including business email compromise (BEC) and evasive link-based attacks. This high accuracy is achieved through the use of AI, global threat intelligence, and expert analysis.
Cloudflare Email Security extends its protection beyond traditional email to cover targeted phishing attacks via various collaboration tools and messaging applications, such as social media, Slack, Microsoft Teams, QR codes, and SMS text messages.
Cloudflare Email Security offers flexible deployment options, allowing for inline deployment, API-based integration, or a combination of both.
Cloudflare identifies even the most advanced BEC and phishing attacks through a combination of artificial intelligence, threat intelligence, and expert-defined rules. The system analyzes emails based on numerous attributes, including sender reputation, message sentiment, behavioral attributes, and conversation context. It also uses a patented email detection fingerprint (EDF) to uncover patterns in phishing campaigns.
Cloudflare was recognized as a Strong Performer in The Forrester Wave™: Email, Messaging, And Collaboration Security Solutions, Q2 2025 report. They achieved the highest possible scores in nine criteria, including antimalware, sandboxing, malicious URL detection, web security, threat intelligence, and content analysis and processing.
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