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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Domain scanner & compliance tool for Gmail, Yahoo & Microsoft DMARC requirements.
Managed cloud email security service with anti-spam, anti-phishing, and DLP.
CDR solution that sanitizes files and emails by disassembling and rebuilding them.
Home network security hardware device blocking spam, viruses, and phishing.
BEC protection platform for email threat detection and response.
Browser extension for real-time phishing & impersonation detection with AI warnings.
Cloud-native AI email security platform with LLM-based threat detection and DLP.
AI-powered email security platform for Microsoft 365 with backup & compliance.
Enterprise email security via encrypted stealth-links, bypassing SMTP vulnerabilities.
Encrypted enterprise messaging solution within the SalaX Secure Collaboration suite.
Email encryption solution for secure organizational communications.
Email security gateway appliance for spam/malware filtering and mail flow control.
Email security layer for M365 with anti-phishing, sandboxing, and DLP.
Tiered cybersecurity bundles combining email, DNS, backup & SAT.
Cloud-based anti-spam and antivirus email filtering with AI threat detection.
Cloud email filter using block/allow lists and greylisting to reduce spam.
Cloud-based email archiving with real-time capture, deduplication & eDiscovery.
DNSBL of end-user IP ranges that should not send email directly to MX servers.
Managed email security service for Office 365 using Cisco's platform.
MSP-focused multi-tenant DMARC management platform for email auth at scale.
DMARC management platform for email auth enforcement across domains.
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, 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.
