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Barracuda Email Protection vs Microsoft Defender for Office 365 comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 19, 2026

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

Barracuda Email Protection
Ranking in Email Archiving
2nd
Ranking in Email Security
12th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
19
Ranking in other categories
Security Incident Response (9th), Office 365 Protection (4th)
Microsoft Defender for Offi...
Ranking in Email Archiving
1st
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
60
Ranking in other categories
Advanced Threat Protection (ATP) (2nd), Microsoft Security Suite (10th), Secure Email Gateway (SEG) (1st)
 

Mindshare comparison

As of February 2026, in the Email Security category, the mindshare of Barracuda Email Protection is 3.7%, up from 2.3% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 9.1%, down from 13.7% 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 3659.1%
Barracuda Email Protection3.7%
Other87.2%
Email Security
 

Featured Reviews

Sherif Fouad - PeerSpot reviewer
Group ICT Manager at a mining and metals company with 501-1,000 employees
Have raised concerns about scanning engines and automation while continuing to rely on layered protection strategies
Incident response is something that requires more development from Barracuda's side. Regarding room for improvement for Barracuda Forensics and Incident Response, for the product, developing or improving the scanning engine is important, but it's a bit tricky. I know that they are working on it heavily. The difference between Barracuda and Sophos is Sophos focused heavily on cybersecurity while Barracuda tried to increase their product portfolio. Sometimes, in some cases, this might end up with their teams being unfocused or a bit thin and stretched and super busy. However, there is room for improvement. The product is great. The teams that are supporting are great. But there is always room for improvement. Even if you have a product that you would give a rating of 10 out of 10, there is always room for improvement. The day we stop improving is the day we die. Regarding the scanning engine, Barracuda Forensics and Incident Response has a very good feature where you can create automated flows for how to handle specific emails that are detected as incidents. This needs a bit of an improvement. That's the only component of Barracuda Forensics and Incident Response that I believe requires improvement.
Emeka Ndulu - PeerSpot reviewer
Cloud Solutions Architect at a tech services company with 201-500 employees
Improves threat visibility and response while reducing manual tasks and training users against phishing
I appreciate the attack simulation feature whereby I get to train users and educate them on how to identify phishing emails and spam emails, as well as the anti-spam protection. It gives me visibility into my threat environment and threat landscape to ensure that I am one step ahead of any likelihood of threats within my environment. I get to detect it and respond, so the threat intelligence is very effective. Microsoft security solutions save my time. It saves money because once I protect my environment, I don't lose money. It has decreased my detection time and my time to respond.

Quotes from Members

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

Pros

"The solution's most valuable feature is impersonation detection."
"We check the reports sometimes to see that frequent attacks and malicious emails are being blocked by the solution."
"Barracuda email protection is stable. I would give it a nine because of its strong cybersecurity features."
"The most valuable features are security and ease of use."
"The archiving and search features are very good."
"The best feature of Barracuda Email Protection is that it provides protection for Microsoft 365."
"I'm quite satisfied with the graphical user interface for Barracuda products."
"I would rate the solution nine out of ten."
"The solution is very easy to use. All you have to do is to assign the license to the end-user and it's done. The customer will only have the feature activated, and the solution will monitor the emails to determine if they are a threat or not."
"There are several features that I consider valuable."
"Some of the valuable features on the email side are anti-phishing, anti-malware, and Safe Links."
"It also gives me good visibility because, with Defender, I'm using a Microsoft product to defend Microsoft products. The integration was really seamless and I have wide visibility because it picks up almost everything. Literally, I can see almost every activity that happens, from the e-mail to the workstation itself."
"It gives us visibility into threats and, for endpoints, it helps us to prioritize threats. We used to have a lack of visibility, but now our time to detect and respond has decreased."
"It gives me visibility into my threat environment and threat landscape to ensure that I am one step ahead of any likelihood of threats within my environment."
"The most valuable feature of Microsoft Defender for Office 365 is its spam filter."
"My experience with customer support and technical support for Microsoft Defender for Office 365 has been excellent."
 

Cons

"Barracuda Email Protection needs better reporting and more robust integration with security awareness training platforms and third-party solutions."
"The platform's pricing needs improvement."
"Considering it integrates with Azure, I would like to be able to effectively set up policies where people are by default included in certain settings."
"Two to three months back, we got fraudulent emails in which someone in the organization was being blamed."
"The solution's graphical user interface (GUI) could be improved visually."
"The product must enable bulk user management."
"Sometimes, in some cases, this might end up with their teams being unfocused or a bit thin and stretched and super busy."
"They could simplify the licensing and the pricing."
"There needs to be an improvement in integrating the product to work across multiple operating systems, and to have better support for non-Microsoft file types."
"Microsoft Defender for Office 365 must improve the overall management style, including the GUI. It also needs to change the filters so that it is easy to whitelist and blacklist data."
"This product's effectiveness could be improved, in terms of detecting unwanted spam or even malware between the emails, compared to other products."
"To improve Microsoft Defender for Office 365, it would be nice to have more accessibility for users to see on their end what they are doing that could cause a threat."
"We need a separate license and we don't know how to get the license that is required."
"The inbuilt analysis of false positives can be faster. It's not slow, but it can be faster."
"The inbuilt analysis of false positives can be faster. It's not slow, but it can be faster."
"Microsoft Defender for Office 365 could improve by giving customers information on techniques to prevent threats. For example, information about best practices on how to protect their own devices against hackers and scammers, such as educational information or training. This would help others have a better understanding of cyber security. Additionally, there can be more security features added."
 

Pricing and Cost Advice

"On a scale from one to ten, where one is cheap, and ten is expensive, I rate the solution's pricing a seven out of ten."
"The price of Barracuda Essentials is better than some of the competing products."
"The product is expensive."
"Barracuda licensing model is good."
"Despite a list price possibly around $40 per user, their market price allows customers to easily buy the solution."
"The solution's pricing is moderate, where it is neither cheap nor expensive."
"Price-wise, this product is middle-of-the-road."
"The price is similar to that of Microsoft 365."
"The product is expensive."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"Defender is a little bit more expensive as compared to others. We are in the manufacturing environment. So, we don't have a high budget for all of our endpoint devices. Its cost is a major concern for us."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
"Microsoft Defender for Office 365 comes with Microsoft Windows. It is free with the operating system."
"The pricing has become expensive."
"The license is expensive because the cost is based on the number of users."
"I know that the product is incredibly expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Manufacturing Company
9%
Financial Services Firm
8%
Construction Company
7%
Computer Software Company
13%
Financial Services Firm
8%
Manufacturing Company
8%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise6
Large Enterprise5
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise10
Large Enterprise31
 

Questions from the Community

What do you like most about Barracuda Email Protection?
Barracuda Email Protection is easy to deploy and maintain. It doesn't require a specialized resource to manage this tool.
What is your experience regarding pricing and costs for Barracuda Email Protection?
Their list price is too high, but in India, the selling price is affordable at around $10 per user per year. Despite a list price possibly around $40 per user, their market price allows customers t...
What needs improvement with Barracuda Email Protection?
Considering it integrates with Azure, I would like to be able to effectively set up policies where people are by default included in certain settings. For instance, for email quarantine, I can't se...
What needs improvement with Microsoft Defender for Office 365?
The inbuilt analysis of false positives can be faster. It's not slow, but it can be faster.
What is your primary use case for Microsoft Defender for Office 365?
My use case for Microsoft Defender for Office 365 is for email protection, safe links, protection of links, documents, protecting my documents, and protecting attachments. I also use it to conduct ...
 

Also Known As

Barracuda Essentials, Barracuda Forensics and Incident Response
MS Defender for Office 365
 

Overview

 

Sample Customers

ACT Government, Acumen Group, AGIP, Delta Dental Plans Association, Desai/Nasr Consulting Engineers, Inc., Equinox Information Systems
Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Find out what your peers are saying about Barracuda Email Protection vs. Microsoft Defender for Office 365 and other solutions. Updated: February 2026.
881,757 professionals have used our research since 2012.