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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
13th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
19
Ranking in other categories
Security Incident Response (7th), 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 January 2026, in the Email Security category, the mindshare of Barracuda Email Protection is 3.3%, up from 2.1% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 9.6%, down from 13.9% 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 3659.6%
Barracuda Email Protection3.3%
Other87.1%
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."
"When we got the service, it included the email archiver with unlimited storage."
"The archiving and search features are very good."
"Barracuda email protection is stable. I would give it a nine because of its strong cybersecurity features."
"The beauty of Barracuda Email Protection is that it is easy to manage and simple to deploy."
"The most valuable features of Barracuda Email Protection are flexibility and customization."
"The most valuable features of Barracuda Essentials are it's a trusted name and is rated very high on review sites. It blocks high percentages of spam and junk email and it's in the cloud. They have hardware appliances, but this is in the cloud. The solution is very effective at blocking malware and blocking spam and this is what we are looking for. There's not a whole lot of complexity, you want a solution that is very good at blocking out all of the unwanted emails."
"Some of the valuable features on the email side are anti-phishing, anti-malware, and Safe Links."
"Defender helps us prioritize threats across our organization."
"The risk level notifications are most valuable. We get to know what kind of intrusion or attack is there, and we can fix a problem on time."
"The most valuable feature is the integration. It's a single console, so we don't have to switch around between multiple products. Another valuable feature is the ease of operations and maintenance."
"Microsoft Defender has a feature to protect each and every attachment. Even if it's an encrypted attachment, it will check for any potential threats."
"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."
"Microsoft Defender for Office 365 has improved my organization's security. It makes it easier to manage the infrastructure without the help of third-party applications."
"The technical support is good and quick to resolve issues."
 

Cons

"The technology works on a supervised engine, but it would be better if it ran on an unsupervised engine."
"The product must enable bulk user management."
"The platform's pricing needs improvement."
"Barracuda Email Protection needs better reporting and more robust integration with security awareness training platforms and third-party solutions."
"I would like to see better integration with other products."
"I would like to see some additional functionality in terms of employee monitoring, as part of a work-from-home security solution."
"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 visibility into threats is not up to the mark, as I do not have control. I rate my experience with Microsoft Defender for Office 365 as six out of ten due to troubleshooting and pricing concerns."
"You should be able to deploy Defender for every subscription without the need to add servers."
"One area for improvement is integration. For example, when it comes to external SaaS platforms, we were not able to get a lot of information on integrations with such apps for security and authentication."
"The inbuilt analysis of false positives can be faster. It's not slow, but it can be faster."
"The changes to customer service, specifically the new model for support agreements, are not favorable."
"Too many false positives and lacks an accurate capability to detect malicious SharePoint sites."
"Microsoft Defender for Office 365's Mac functionality requires improvement to deliver the same level of protection found on Windows devices."
"There's room for improvement regarding the time frame for retrieving emails."
 

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 product is expensive."
"We didn't have to pay a lot for the solution because we got it from a good vendor with a good user volume."
"Despite a list price possibly around $40 per user, their market price allows customers to easily buy the solution."
"Barracuda licensing model is good."
"Price-wise, this product is middle-of-the-road."
"The price of Barracuda Essentials is better than some of the competing products."
"The solution's pricing is moderate, where it is neither cheap nor expensive."
"I know that the product is incredibly expensive."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"Microsoft Defender for Office 365 comes with Microsoft Windows. It is free with the operating system."
"It's a user-base subscription."
"For licensing, it's usually a yearly package for customers who are subscribed to Office 365, but they can also pay on a monthly basis."
"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."
"The product is expensive."
"The product is very expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Manufacturing Company
9%
Financial Services Firm
8%
Construction Company
7%
Computer Software Company
14%
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: December 2025.
881,082 professionals have used our research since 2012.