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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Email and web threat detection platform with AI-based behavioral analysis
DKIM record validation tool that verifies public key DNS configuration
DMARC management platform for email authentication and domain protection
Email security platform with AI threat detection, BEC protection, and DLP
Carrier-grade email security for ISPs blocking spam, phishing, and malware
AI-powered email security platform for phishing and BEC protection
Browser extension that cryptographically signs emails to prevent BEC attacks
MX-based email security platform using AI to block spam, phishing & malware
AI-powered anti-phishing solution for Microsoft 365 environments
Phishing threat identification and mitigation tool for email security teams
Email threat scanning and reporting add-in for Microsoft 365 and Google
Email DLP solution using ML and behavioral AI to prevent data loss
Automated phishing incident response platform with threat categorization & removal
AI-powered email security detecting phishing attacks missed by traditional tools
AI-driven email security platform for Microsoft 365 inbound/outbound threats
End-to-end email encryption for Gmail with granular access controls
End-to-end email encryption for Gmail and Outlook with access controls
AI-powered multilayered phishing protection combining email & web security
AI-powered phishing detection & response automation for SOC teams
AI-powered email security platform with agentic automation and detection
Automates phishing email analysis, remediation, and user response via AI
Email triage solution with threat analysis and automation for phishing detection
Centralized platform for reporting, analyzing, and responding to email threats
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.
