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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Secure email solution for recruiters to encrypt and share sensitive candidate data
Managed service for triaging and analyzing user-reported phishing emails
AI-powered email security platform that detects phishing, BEC, and malware
Comprehensive email security platform protecting inbound/outbound communications
Cloud-based email encryption with automated DLP policies and delivery methods
Email security platform protecting against phishing, malware, and BEC attacks
Email security platform enhanced with multi-tenant mgmt & automation tools
Domain security checker for email authentication protocol verification
Free DMARC monitoring tool for identifying email senders and authentication status
Automated DMARC enforcement platform for domain protection and email security
Email filtering service protecting against spam, viruses, and phishing.
Email archiving solution with encryption, compression, and compliance features
Outbound email filtering to block spam, phishing, and malware traffic.
Email security platform filtering spam, phishing, and malware threats
Email and file encryption solution for secure data sharing and storage
Email encryption solution with access control, tracking, and revocation
File-based threat protection using CDR across email, file transfer, and media
AI-powered email security solution that detects and blocks phishing attempts.
ATP solution for SaaS & email with AI-driven detection & auto-response
Email security platform combining AI and human insights for phishing protection
AI-powered email security platform with behavioral detection and automation
DMARC management platform for email authentication and domain protection
M365 security monitoring with automated threat detection and password mgmt.
Browser-based phishing protection with AI-driven detection at point-of-click
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.
