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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Manages BIMI records, logo hosting, VMC/CMC certs, and DNS config for email branding.
Platform automating DMARC compliance via record mgmt, reporting & policy enforcement.
Swiss-hosted secure email, messaging, and VPN suite for private comms.
Blocks phishing sites on employee devices using AI-based real-time classification.
E2E encrypted email for regulated industries handling CUI and ITAR data.
Enterprise admin module for encrypted email & file sharing with E-discovery controls.
End-to-end encrypted email & file sharing with zero-trust architecture.
Cloud-managed DMARC record hosting with DNS-free policy management.
DMARC monitoring platform protecting domains from spoofing and BEC attacks.
API-based email security for M365/Google with auto-retraction of phishing threats.
Browser ext. that blocks SaaS spear phishing via real-time content analysis.
On-premises Exchange Server security tool for protocol-level threat detection.
Cloud-based managed email filtering against phishing, ransomware & BEC.
Cloud-based email filtering blocking phishing, malware, spam & BEC attacks.
Real-time illicit image detection & policy compliance for email servers.
Cloud SMTP relay for hosting providers to filter outbound spam & protect IP reputation.
cPanel/WHM plugin for provisioning MailChannels email security for hosting customers.
Email phishing reporting plugin with incident analysis and threat mitigation.
Automated email monitoring tool for analyzing suspicious emails and URLs.
Cloud-based email encryption service using PKI, S/MIME & X.509 for orgs.
Managed business email service on MailEnable with security & no per-mailbox fees.
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.
