GreatHorn Email Security by GreatHorn

GreatHorn Email Security software reviews, alternatives, pricing, & feature 2026

5/5 from 1 reviews and ratings
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Email Security Software

GreatHorn Email Security reviews and summary

GreatHorn Email Security is a comprehensive, cloud-native platform that provides a multi-layered defense for email ecosystems, primarily within cloud email services like Microsoft 365 and Google Workspace. It goes beyond gateway filtering to analyze the context, content, and behavior of emails in real-time. Its protection specifically targets sophisticated threats like executive impersonation, domain spoofing, credential phishing, and malware-less attacks that exploit human behavior. GreatHorn integrates directly via API, requiring no MX record changes, and uses machine learning to adapt to an organization's unique communication patterns. This platform is designed for modern enterprises operating in cloud email environments that are targeted by advan...

Best for

This platform is designed for modern enterprises operating in cloud email environments that are targeted by advanced social engineering and impersonation attacks. It is ideal for security teams needing to protect against Business Email Compromise (BEC) and for compliance-sensitive industries like finance, healthcare, and legal services.

Starting price Pricing not listed
Vendor GreatHorn
Key takeaways

Our verdict

GreatHorn provides a sophisticated, API-based security layer that effectively addresses the nuanced threat landscape of cloud email, offering strong protection against the human-centric attacks that often bypass traditional security tools.

Quick facts

GreatHorn Email Security at a glance

Overall rating 5/5
Reviews 1
Starting price Pricing not listed
Vendor GreatHorn
Location United States
Ratings

GreatHorn Email Security ratings

Ratings in this section summarize available rating data. Software reviews are shown separately when users submit reviews.

5

/
5

1 reviews and ratings

Rating summary

Star distribution will appear after software reviews are submitted.

Decision notes

GreatHorn Email Security pros and cons

Potential strengths

  • Clear buyer-fit positioning is available in the profile data.

Points to verify

  • Confirm current pricing, contract terms, and included plan details with the vendor.
  • Confirm product-specific availability for category-level features before buying.
  • There are no written reviews for this software yet.
Buyer fit

Who uses GreatHorn Email Security?

This platform is designed for modern enterprises operating in cloud email environments that are targeted by advanced social engineering and impersonation attacks. It is ideal for security teams needing to protect against Business Email Compromise (BEC) and for compliance-sensitive industries like finance, healthcare, and legal services.

Feature research

GreatHorn Email Security features

These are common features buyers compare in Email Security Software. Product-specific availability should be confirmed with the vendor.

Attachment Security

Security features specifically designed to block or scan dangerous email attachments.

Data Encryption

Transform information into secure code to protect against unauthorized access.

Fraud Prevention Systems

Detect and mitigate potentially fraudulent or unauthorized actions through real-time monitoring.

Business Policy Administration

Administer and maintain organizational guidelines for various operational scenarios.

Email Quarantine

Isolate suspicious emails in a secure area for review and timed storage.

Anti-Spam Filtering

Advanced filtering systems designed to block spam and malware threats.

Access Filtering

Managing access by maintaining lists of approved or blocked entities, such as email addresses.

Pricing

GreatHorn Email Security pricing

Starting price Pricing not listed

Pricing model: Per Feature

Pricing can change. Confirm current plans and terms with the vendor.

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Compare

GreatHorn Email Security alternatives

Compare GreatHorn Email Security with other Email Security Software tools that buyers often evaluate.

ProtonMail by Proton Technologies

4.5 (46)

ProtonMail is a secure email service built from the ground up with a core philosophy of privacy and data sovereignty. Based in Switzerland, it benefits from some of the world's str...

Avanan by Avanan

4.8 (42)

Avanan is a cloud-native security platform that takes a unique API-based approach to securing cloud email and collaboration suites like Microsoft 365, Google Workspace, and Slack....

Virtru by Virtru

4.6 (34)

Virtru is a prominent provider of end-to-end encryption solutions focused on making strong data protection accessible for email and file sharing. Its technology integrates seamless...

Paubox Email Suite by Paubox

5 (29)

Paubox Email Suite is a specialized email security and encryption platform built explicitly for the healthcare sector. Its primary goal is to enable HIPAA-compliant communication b...

Libraesva ESG by Libraesva

4.8 (24)

Libraesva ESG (Email Security Gateway) is part of a broader suite that also includes an Email Archiver and Load Balancer. The ESG itself is a highly effective, VB100-certified filt...

Graphus by Kaseya

4.4 (26)

Graphus is an AI-driven, cloud-native email security solution that automates the detection and response to phishing and social engineering attacks for Microsoft 365 and Google Work...

Software reviews

GreatHorn Email Security software reviews

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FAQ

GreatHorn Email Security FAQs

GreatHorn Email Security is a comprehensive, cloud-native platform that provides a multi-layered defense for email ecosystems, primarily within cloud email services like Microsoft 365 and Google Workspace. It goes beyond gateway filtering to analyze the context, content, and behavior of emails in real-time. Its protection specifically targets sophisticated threats like executive impersonation, domain spoofing, credential phishing, and malware-less attacks that exploit human behavior. GreatHorn integrates directly via API, requiring no MX record changes, and uses machine learning to adapt to an organization's unique communication patterns.

This platform is designed for modern enterprises operating in cloud email environments that are targeted by advanced social engineering and impersonation attacks. It is ideal for security teams needing to protect against Business Email Compromise (BEC) and for compliance-sensitive industries like finance, healthcare, and legal services.

Pricing can change. Confirm current plans and terms with the vendor.

GreatHorn Email Security is listed in Email Security Software.

GreatHorn Email Security is listed with GreatHorn as the vendor.

Buyers often compare GreatHorn Email Security with other Email Security Software tools such as AVG Internet Security Business Edition, Barracuda Email Security Gateway, ProtonMail, Avanan. Review ratings, pricing, and fit before choosing.

Yes. Use the Write a review button on this page to submit a software review for GreatHorn Email Security.
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