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Avanan vs GreatHorn Email Security comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Avanan
Ranking in Email Security
15th
Average Rating
9.2
Reviews Sentiment
7.8
Number of Reviews
19
Ranking in other categories
Data Loss Prevention (DLP) (26th)
GreatHorn Email Security
Ranking in Email Security
71st
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2025, in the Email Security category, the mindshare of Avanan is 3.4%, down from 3.8% compared to the previous year. The mindshare of GreatHorn Email Security is 0.1%, down from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Avanan3.4%
GreatHorn Email Security0.1%
Other96.5%
Email Security
 

Featured Reviews

Robert Melendez - PeerSpot reviewer
Enhances email security and has a very simple and easy-to-use UI
Spam protection is the most valuable feature. We have implemented the tool to enhance our email security. It helps prevent phishing attacks. The anomaly detection capabilities are baked into the security platform. The product integrates wonderfully with Microsoft 365. It's built right on a cloud platform and works almost natively. The solution has a very simple and easy-to-use UI. The tool appears extremely powerful and has a good solid feature set. It catches things that are bad for my environment. The user interface is good the way it is. If the solution continues down that path, I see no problems with the way it is going. It feels like a mature product.
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Manufacturing Company
8%
Construction Company
7%
Comms Service Provider
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise8
Large Enterprise6
No data available
 

Questions from the Community

What do you like most about Avanan?
Spam protection is the most valuable feature.
What needs improvement with Avanan?
Avanan doesn't cover certain tool segments. Barracuda provides backup and retention of emails and Microsoft 365’s backup and retention services. I've brought this up with the vendor. They told me t...
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Overview

 

Sample Customers

Bethel School District, ServiceSource, Capital Caring
Hersha Hospitality Management,
Find out what your peers are saying about Microsoft, Abnormal Security, Proofpoint and others in Email Security. Updated: August 2025.
867,370 professionals have used our research since 2012.