Email Security Tools
Email security solutions for protecting against phishing attacks, business email compromise, spam, and email-borne threats.
Browse 253 email security tools
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AI-powered email and collaboration security platform for threat detection
Email authentication platform implementing DMARC, SPF, DKIM, and BIMI protocols
AI-driven email security platform for detecting advanced email threats
Cloud-based email security platform with AI-powered threat detection
Email security gateway protecting against phishing, BEC, and email-borne threats
Email security gateway protecting against spam, phishing, viruses & data leaks
AI-powered email security platform for threat detection and compliance
All-in-one email security platform for threat protection and compliance
Cloud-native email security platform for phishing detection and response
Email security platform protecting M365 & Google Workspace from threats
Cloud-based email security platform protecting against phishing & ransomware
File-based threat protection for Microsoft 365 using CDR technology
Email security platform with inline threat protection and compliant archiving
AI-powered email security platform protecting against advanced threats
Email security platform with phishing/BEC protection and MDR/XDR integration
Comprehensive M365 security suite with email protection, backup, and compliance
Behavioral email security platform protecting inbound, outbound, and internal mail
Open-source detection rules for email attacks like BEC, phishing, and malware
Cloud-based email security platform protecting against phishing, ransomware, BEC
Post-perimeter phishing detection and automated remediation platform
DLP solution for preventing data exfiltration via outbound email channels
Cloudflare Cloud Email Security is a cloud-based email protection service that safeguards organizations against phishing, malware, spam, and other email-borne threats through integrated threat detection and prevention capabilities.
AI-powered email security platform protecting against phishing, BEC, and ATO
Email and collaboration security for Microsoft 365 environments
Email Security Specializations
253 tools across 5 specializations · 19 free, 234 commercial
Anti-Phishing
Anti-phishing tools and email security gateways that detect and block phishing emails, malicious links, and social engineering attacks.
Business Email Compromise Protection
BEC protection solutions that prevent CEO fraud, wire transfer fraud, and advanced email-based financial crimes.
Email DLP
Email data loss prevention tools that monitor outbound emails for sensitive data and prevent accidental or malicious data leakage.
Email Security Tools FAQ
Common questions about Email Security tools, selection guides, pricing, and comparisons.
Email security gateways (SEGs) sit in front of your mail server, filtering emails before delivery using MX record redirection. API-based email security integrates directly with email platforms like Microsoft 365 or Google Workspace via APIs, analyzing emails post-delivery and retroactively removing threats. API-based solutions are better at catching sophisticated phishing and BEC attacks that bypass gateway reputation checks.
BEC attacks use social engineering rather than malware, making them invisible to traditional email filters. Protection requires: AI-based email analysis that detects tone and behavioral anomalies, DMARC/DKIM/SPF authentication to prevent domain spoofing, executive impersonation detection, out-of-band verification for financial requests, and security awareness training focused on recognizing social engineering tactics.
Microsoft Defender for Office 365 provides baseline protection including anti-phishing, safe attachments, and safe links. However, independent tests consistently show that dedicated third-party email security tools catch 10-20% more sophisticated threats, particularly targeted phishing, zero-day payloads, and BEC attacks. Most security teams layer a third-party solution on top of Microsoft native protections.
Yes. Out of 24 email security tools listed on CybersecTools, 1 are free and 23 are commercial. Free tools work well for small teams, testing, and budget-conscious organizations. Commercial tools typically add enterprise features, dedicated support, and SLA guarantees.
