Top 10 Email Security For Office 365 Alternatives & Competitors

Top 10 Alternatives to Email Security For Office 365 Recently Reviewed By G2 Community

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Virtru Email Encryption
By Virtru
4.4/5
(406)
Product Description
Virtru puts you in charge of how your digital information is shared. Combining control, convenience, and simplicity, Virtru makes it easy to keep your private communications private.
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Reviewers say compared to Email Security For Office 365, Virtru Email Encryption is:
Easier to admin
Easier to do business with
More usable
Categories in common with Email Security For Office 365:
Intelligent Email Protection

Proofpoint Core Email Protection
By Proofpoint
4.6/5
(583)
Product Description
Proofpoint Core Email Protection stops malware and non-malware threats such as impostor email.
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Reviewers say compared to Email Security For Office 365, Proofpoint Core Email Protection is:
Easier to do business with
Easier to admin
Better at meeting requirements
Categories in common with Email Security For Office 365:
Intelligent Email Protection

Check Point Harmony Email & Collaboration
By Check Point Software Technologies
4.6/5
(512)
Product Description
Check Point Harmony Email & Office, protects enterprise data by preventing targeted attacks on SaaS applications and cloud-based email.
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Reviewers say compared to Email Security For Office 365, Check Point Harmony Email & Collaboration is:
Easier to admin
Easier to do business with
More usable
Categories in common with Email Security For Office 365:
Intelligent Email Protection

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Microsoft Defender for Office 365
By Microsoft
4.5/5
(292)
Product Description
Microsoft Defender for Office 365 is a comprehensive security solution designed to protect organizations from advanced threats targeting email and collaboration tools within the Microsoft 365 environment. It offers robust protection against phishing, malware, and business email compromise, ensuring secure communication and collaboration across platforms like Exchange Online, Microsoft Teams, SharePoint, and OneDrive. Key Features and Functionality: - Safe Attachments: Scans email attachments in a secure environment to detect and block malicious content before it reaches users. - Safe Links: Provides real-time protection by analyzing URLs at the time of click, safeguarding users from malicious links. - Anti-Phishing Policies: Utilizes advanced algorithms and machine learning to identify and mitigate phishing attempts, including those involving domain impersonation. - Protection for Collaboration Tools: Extends security measures to Microsoft Teams, SharePoint, and OneDrive, ensuring safe file sharing and collaboration. - Automated Investigation and Response (AIR): Automates threat investigation processes, enabling swift identification and remediation of security incidents. - Attack Simulation Training: Offers tools to simulate phishing attacks, helping organizations educate employees and strengthen their security posture. Primary Value and Problem Solved: Microsoft Defender for Office 365 addresses the critical need for advanced threat protection in today's digital workplace. By integrating seamlessly with Microsoft 365 applications, it provides a unified defense against sophisticated cyber threats, reducing the risk of data breaches and ensuring business continuity. Its comprehensive approach not only safeguards email communications but also secures collaborative platforms, enabling organizations to operate confidently in a secure environment.
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Reviewers say compared to Email Security For Office 365, Microsoft Defender for Office 365 is:
Easier to admin
Easier to do business with
More usable
Categories in common with Email Security For Office 365:
Intelligent Email Protection

SpamTitan Email Security
By CyberSentriq
4.5/5
(198)
Product Description
Advanced yet easy to use Business Email Security Solution. Protects your business from malicious threats via email such as phishing, malware and spoofing. Double AV protection included. Office 365 Friendly.
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Reviewers say compared to Email Security For Office 365, SpamTitan Email Security is:
Easier to admin
Easier to do business with
More usable
Categories in common with Email Security For Office 365:
Intelligent Email Protection

Zivver Email Encryption
By Zivver
4.4/5
(50)
Product Description
ZIVVER is a user-friendly solution for secure email and file transfer, straight from your familiar email programme. This enables you to prevent human errors, encrypt your data against hackers and keep control of the information sent.
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Reviewers say compared to Email Security For Office 365, Zivver Email Encryption is:
Easier to admin
Easier to do business with
Better at meeting requirements
Categories in common with Email Security For Office 365:
Intelligent Email Protection

Libraesva Email Security
By Libraesva
4.8/5
(94)
Product Description
Libraesva secures email communications, eliminates email borne threats, preserves email data and provides an environment for people to communicate safely.
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Reviewers say compared to Email Security For Office 365, Libraesva Email Security is:
Easier to admin
Easier to do business with
Better at support
Categories in common with Email Security For Office 365:
Intelligent Email Protection

Barracuda Impersonation Protection
By Barracuda
4.5/5
(87)
Product Description
A.I.-Based Protection from Spear Phishing and Email Fraud
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Reviewers say compared to Email Security For Office 365, Barracuda Impersonation Protection is:
Easier to admin
Easier to do business with
Easier to set up
Categories in common with Email Security For Office 365:
Intelligent Email Protection

Darktrace / EMAIL
By Darktrace
4/5
(12)
Product Description
Darktrace / EMAIL is an email security platform powered by Self-Learning AI that protects organizations against the most advanced threats across email and collaboration tools that other solutions miss. Recognized as a Leader in Gartner’s Magic Quadrant and Leaders in the 2025 Voice of the Customer award for Email Security Platforms, it is designed to address the growing sophistication of communication-based attacks. Traditional secure email gateways often rely on static rules or signatures, which struggle against modern threats such as business email compromise and supply chain attacks. Darktrace / EMAIL takes a different approach by using Self-Learning AI to understand the unique communication patterns of each organization and user. This allows it to detect subtle anomalies across inbound, outbound, and lateral messages, and respond with precise, autonomous actions. Key capabilities include: - Behavioral threat detection: Identifies phishing, ransomware, account takeovers, and insider risks by learning “normal” communication behavior of internal and external users. - Protection beyond the inbox: Extends security to collaboration platforms like Microsoft Teams and SaaS applications, addressing the shift of phishing into new channels. - Adaptive response: Suspicious emails are automatically quarantined, links are rewritten, or attachments are removed, all without interrupting legitimate business communication. This approach enforces regular communication and ensures that as much safe, non-malicious content as possible is retained. - Data protection: Provides behavioral data loss prevention and assists with your DMARC configuration and monitoring to safeguard sensitive information and brand reputation. For security teams, Darktrace / EMAIL reduces operational overhead by automating triage and response. Its Cyber AI Analyst provides contextual insights, while end-users benefit from clear, in-app narratives that explain why a message is suspicious—helping to reduce false phishing reports and improve awareness. Benefits for organizations include: - Comprehensive coverage across email, collaboration, and SaaS platforms. - Reduced workload for security teams through automation and AI-driven analysis. - Seamless integration with Microsoft 365, Exchange, and Google Workspace without disrupting mail flow. In summary, Darktrace / EMAIL delivers adaptive, AI-driven protection across the full communication ecosystem. Its dual recognition as a Gartner Leader in both the Voice of the Customer award and the Magic Quadrant for Email Security Platforms in 2025 highlights its effectiveness in helping organizations defend against today’s most complex and fast-evolving threats.
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Reviewers say compared to Email Security For Office 365, Darktrace / EMAIL is:
Easier to admin
Easier to do business with
Easier to set up
Categories in common with Email Security For Office 365:
Intelligent Email Protection