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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Bundled cybersecurity solutions for MSPs and end users with email protection
Email security platform protecting against phishing, BEC, and data loss
Email security platform protecting against phishing, malware, and exploits
AI-powered email security platform detecting threats across email and messaging
Enterprise email security platform for cloud and on-premise deployments
Cloud-based email gateway with spam filtering, anti-phishing, and containment
Cloud-native email security platform with SEG and API-based protection
Email security for Microsoft Exchange servers with antispam and antimalware.
AI chatbot that analyzes texts, links, emails, and QR codes for scam detection
AI-powered DMARC monitoring and email authentication security platform
Email encryption solution for secure information exchange via email
Email security platform blocking spam, phishing, malware, and viruses
Cloud workspace security platform for email, files, and account protection
Email security for Microsoft Exchange servers with anti-spam and anti-malware
Cloud email security for Microsoft 365 and Google Workspace applications
Protects Microsoft 365 users from phishing attacks using fake login pages
AI-powered email security operations platform for automated threat triage
AI-powered email security platform detecting advanced threats via behavioral analysis
A free online tool that tests email server security by evaluating server configurations
Email security platform protecting against fraud, malware, and spam threats
Phishing protection and remediation solution for Microsoft 365 environments
Email security platform with AI-based threat detection and DLP capabilities
Managed email security service protecting against email-based 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.
Based on user ratings and community engagement on CybersecTools, the top-rated Email Security tools are:
Yes. Out of 24 email security tools listed on CybersecTools, 3 are free and 21 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.
