Email Security Tools
Email security solutions for protecting against phishing attacks, business email compromise, spam, and email-borne threats.
Browse 253 email security tools
FEATURED
USE CASES
AI-powered email incident response platform for phishing threat detection
Cloud-based email security service blocking phishing, spam, and malware
Email threat protection for Microsoft 365 with advanced detection capabilities
Automated threat analysis platform for phishing and malware investigation
Email security service for analyzing suspicious emails reported by users
Sandboxes email attachments to detect malicious behavior via dynamic analysis
Automates triage of user-reported suspicious emails with AI classification
Contextual email banner system that alerts users to email threats
Email antivirus and antispam solution for MDaemon email servers
Hosted email server solution with security features
Virtual private server hosting solution for MDaemon email server
Email antivirus and anti-spam solution for private cloud deployments
Private cloud email server solution for organizations
Email security gateway for protecting email infrastructure from threats
Email server application with groupware functions for Microsoft Windows
ActiveSync protocol implementation for MDaemon email server synchronization
Monitors email user behavior with AI/ML to detect and block account takeover attacks
Outbound email security with automated encryption and DLP for compliance
AI-powered inbound email security platform for phishing & malware detection
Enterprise SMS messaging service for sending/receiving texts from business apps
Cloud-based enterprise fax service for secure document transmission
Secure email gateway with automated DLP and zero-knowledge encryption
Email security tool empowering users to identify & report phishing 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:
