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Hornetsecurity Hornet.email vs Microsoft Defender for Office 365 comparison

 

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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

Hornetsecurity Hornet.email
Ranking in Email Security
45th
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
Cloud Email (24th)
Microsoft Defender for Offi...
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
53
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (2nd), Microsoft Security Suite (10th), Secure Email Gateway (SEG) (1st)
 

Mindshare comparison

As of October 2025, in the Email Security category, the mindshare of Hornetsecurity Hornet.email is 0.8%, up from 0.4% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 11.4%, down from 14.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Microsoft Defender for Office 36511.4%
Hornetsecurity Hornet.email0.8%
Other87.8%
Email Security
 

Featured Reviews

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Vikas Ingle - PeerSpot reviewer
Centralized tenant enables group control but setup process complicates implementation
Actually earlier, I used to have full controls with Trend Micro. Microsoft Defender for Office 365 is now part of a centralized tenant for my entire group. I don't have control on that, as another team is maintaining it. Since I don't have full visibility of the features, I cannot make significant comments.
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870,701 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
No data available
Computer Software Company
15%
Financial Services Firm
8%
Manufacturing Company
8%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise8
Large Enterprise27
 

Questions from the Community

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What do you like most about Microsoft Defender for Office 365?
Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of various email campaigns, pinpointing where they emanate from, and identifying the indi...
What is your experience regarding pricing and costs for Microsoft Defender for Office 365?
Microsoft is quite affordable with a lot of features available for any size organization.
What needs improvement with Microsoft Defender for Office 365?
I think that Microsoft Defender for Office 365 could be improved if it could use VirusTotal to compare the programs or anything that I download. VirusTotal helps to identify viruses, malware, troja...
 

Also Known As

Hornet.email
MS Defender for Office 365
 

Overview

 

Sample Customers

FESTO, TDK, Gerry Webber, CLAAS, Konica Minolta
Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Find out what your peers are saying about Microsoft, Abnormal AI, Proofpoint and others in Email Security. Updated: September 2025.
870,701 professionals have used our research since 2012.