Summary
Top email security tools include Microsoft Defender for Office 365, Abnormal Security, and Proofpoint Email Protection according to both users and analysts. Other leading solutions include Check Point Harmony Email & Collaboration, Cisco Secure Email, and Mimecast Advanced Email Security. These tools use advanced threat detection, spam filtering, encryption, and phishing protection to eliminate email-borne threats.
Source: Gemini AI Overview – 11/7/2025
OnAir Post: Email Security Tools
About
Source: Gemini AI Overview – 11/6/2025
Microsoft Defender for Office 365
A popular and widely-searched solution, it provides a cloud-based email filtering service as part of Microsoft 365 packages.
Abnormal Security
An AI-based platform that uses machine learning to detect and stop sophisticated email attacks, often receiving high user ratings.
Proofpoint Email Protection
Offers enterprise-grade protection against threats like phishing, malware, and Business Email Compromise (BEC), using advanced threat detection and machine learning.
Check Point Harmony Email & Collaboration
A cloud-native solution designed to protect against advanced phishing, malware, and ransomware.
Cisco Secure Email
Provides robust defense against email threats through both cloud and on-premises solutions.
Mimecast Advanced Email Security
A cloud-based solution that offers threat detection, archiving, and other protections for email and web browsing.
