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Email Security
Free trial

Top Rated Email Security Software with Free trial - Page 4

Last updated: May 2026

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Features

Activity Dashboard

Whitelisting/Blacklisting

Encryption

Reporting/Analytics

Anomaly/Malware Detection

Integrated with

Gmail

Microsoft Outlook

Microsoft 365

Pricing model

Free

Open Source

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Android

Chromebook

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iPhone

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Web-based

Windows

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Freelancers

Large Enterprises

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Small Business

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FileCap

(0)

Cloud-based email security and encryption solution

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FileCap is a secure file-sharing and collaboration solution that lets users send large files over email safely and easily.

Abusix Mail Intelligence

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Cloud-based email security platform

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Abusix Mail Intelligence is an automated, cloud-based protection suite that enables businesses and organizations to protect their sensitive data from cyber-attacks. It protects users' mail servers and customers' inboxes from spam by orchestrating and automating your full security response including detecting malware and virus through machine learning techniques.

Read more about Abusix Mail Intelligence

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M365 Manager Plus

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Management, reporting, auditing, and monitoring of Microsoft

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M365 Manager Plus is a reporting, auditing, monitoring, management, and security solution for Microsoft 365. Designed for businesses of all sizes, it helps users manage Exchange Online, Azure AD, Microsoft Teams, OneDrive for Business, and other services from a centralized dashboard.

Stalwart

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Open-source mail and collaboration platform

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Stalwart Mail Server is an open-source email platform combining collaboration tools and security features in one unified solution.

Area 1

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Secure email gateway and anti-spam software

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Area 1 Horizon is a network security management software designed to help businesses protect systems against phishing attacks across various traffic sources including emails, web pages, and networks. The platform enables administrators to receive notifications about blocked phishing campaigns on a unified interface.

ManageEngine Endpoint DLP Plus

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Monitor and protect sensitive data across endpoints

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ManageEngine Endpoint DLP Plus is an enterprise-ready solution that monitors the transfer and usage of sensitive data across the business IT network. The solution supports advanced data discovery and classification techniques such as Fingerprint, RegEx, and keywords search, through which sensitive data is identified and protected across the different endpoints in your organization.

Read more about ManageEngine Endpoint DLP Plus

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mailbox

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Secure encrypted email and workspace platform

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Mailbox provides a comprehensive digital workspace combining secure email, cloud storage, video conferencing, and office tools in one integrated platform. The service stores data in certified German data centers with consistent encryption during storage and transmission, ensuring GDPR compliance and enhanced security. Users benefit from spam-free inboxes, collaborative tools, and an infrastructure powered by renewable energy.

Palisade

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Email security software

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Palisade is an AI-powered DMARC platform that automates the implementation of DMARC to help users stop landing in spam and get their verified email checkmark. The platform integrates with over 800 third-party apps and features smart DMARC capabilities, email threat detection, and expert human support to improve email deliverability and security.

FactorX.ai

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AI-powered email security for modern threats

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FactorX.ai is an AI-native email security platform designed for Microsoft 365 and Gmail. It uses real-time threat detection and behavioral AI to stop phishing, malware, BEC, and ransomware.

Advanced Threat Protection

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Ransomware attack, phishing & CEO fraud protection software

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Hornetsecurity's Advanced Threat Protection software is designed to detect and protect enterprises from targeted attacks, ransomware, CEO & phishing fraud with features including a sandbox engine, URL scanning & rewriting, freezing, targeted fraud forensics, and more

Read more about Advanced Threat Protection

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Agari Secure Email Cloud

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Email security and cybersecurity software

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Agari Secure Email Cloud is an email security and cybersecurity software that helps businesses in finance, healthcare, retail, legal, and IT industry segments identify and prevent spear phishing, account takeovers, and email compromise-based attacks. With the incident response functionality, staff members can prioritize tasks and conduct attachments, URLs, and sender forensics-based investigations.

Read more about Agari Secure Email Cloud

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StartMail

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Email platform for end-to-end email encryption

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StartMail is a privacy-first email service that keeps your inbox safe. It is designed for individual and business use. StartMail users can create an unlimited number of email aliases at no extra cost to mask their real email. Custom email addresses are available for businesses.

LogValid

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Real-time email verification solution

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LogValid enhances email security by verifying the authenticity of email addresses in real time. It detects and removes invalid, disposable, and spam emails, protecting your system from fraud, phishing, and other security threats.