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Barracuda Email Protection vs Microsoft Defender for Office 365 comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 29, 2025

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
8.8
Reviews Sentiment
7.2
Number of Reviews
18
Ranking in other categories
Office 365 Protection (5th)
Microsoft Defender for Offi...
Ranking in Email Archiving
1st
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
53
Ranking in other categories
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 Barracuda Email Protection is 3.0%, up from 1.8% 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%
Barracuda Email Protection3.0%
Other85.6%
Email Security
 

Featured Reviews

LeeMiles - PeerSpot reviewer
Very good threat protection, spam filtering, and cloud backups
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 set up a global setting. Users must go through an induction session where I guide them in configuring quarantine alerts rather than having default settings based on group membership. This seems like an oversight since they already use Active Directory details. They should assign policies based on group membership, which configures these settings by default.
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.

Quotes from Members

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

Pros

"The solution is straightforward to set up."
"The most valuable aspect includes attempts to spoof or compromise domains from external sources."
"We now have a secondary backup of Office 365 that's much easier to retrieve compared to Microsoft. If someone deletes something in Office 365, we can get it back within Office 365, but it's difficult. Barracuda is much easier. There is a lot less management needed using Barracuda. The management becomes much easier for Office 365 and it's no longer on-prem, so there are fewer hours managing on-prem devices, servers, and things of that nature. We don't have network appliances anymore for the backup of our information."
"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."
"Barracuda email protection is stable. I would give it a nine because of its strong cybersecurity features."
"The archiving and search features are very good."
"The product is easy to deploy and maintain."
"The best feature of Barracuda Email Protection is that it provides protection for Microsoft 365."
"The two main features that prove most beneficial for us are URL scanning and attachment scanning."
"Scalability-wise, I do not think there are any issues so far."
"We use Microsoft Defender for its ability to integrate with existing business technologies, which is beneficial for protecting business areas."
"Microsoft Defender for Office 365 is a stable solution."
"The deployment capability is a great feature."
"My experience with customer support and technical support for Microsoft Defender for Office 365 has been excellent."
"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."
"The stability of Microsoft Defender for Office 365 is fantastic."
 

Cons

"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."
"I would like to see some additional functionality in terms of employee monitoring, as part of a work-from-home security solution."
"The policies are set up in Barracuda by default; we don't have any control over them."
"The technology works on a supervised engine, but it would be better if it ran on an unsupervised engine."
"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."
"Barracuda Email Protection needs better reporting and more robust integration with security awareness training platforms and third-party solutions."
"The solution's reporting mechanism is a little poor and could be improved."
"Two to three months back, we got fraudulent emails in which someone in the organization was being blamed."
"They can improve their security in a way where a customer can know if all their attachments are safe or not to open through a report. The solution does its job perfectly, but it never reports to the customer whether those attachments have been stopped before or not."
"There's room for improvement regarding the time frame for retrieving emails."
"Microsoft security solutions work as expected. They are constantly updating the solutions to make them better. At the same time, the changes can impact a customer's environment, and we need to adjust settings. Sometimes we aren't aware of the changes, and nothing is pushed from the backend automatically."
"Configuration at the mid-level could be improved for the support team."
"We need a separate license and we don't know how to get the license that is required."
"There is room for improvement in terms of reporting."
"Microsoft Defender for Office 365's Mac functionality requires improvement to deliver the same level of protection found on Windows devices."
"The changes to customer service, specifically the new model for support agreements, are not favorable."
 

Pricing and Cost Advice

"We pay annually. They never charged us for anything else. And they were quite a bit under that $20,000 mark. It was $19,074. And they've been pretty good about not skyrocketing the price or anything like that. It has gone up. It's gone up to $24,000 in 2020."
"The product is expensive."
"Despite a list price possibly around $40 per user, their market price allows customers to easily buy the solution."
"Barracuda licensing model is good."
"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."
"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 is similar to that of Microsoft 365."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
"The pricing is normal. Considering its popularity, it's not overpriced."
"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."
"The product is very expensive."
"It's a user-base subscription."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"While Microsoft Defender for Office 365 necessitates pricier E3 or E5 subscriptions, the extensive functionality offered by these licenses across various Microsoft products justifies the investment."
"The product is expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Manufacturing Company
9%
Construction Company
8%
Healthcare Company
6%
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
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise5
Large Enterprise3
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise8
Large Enterprise27
 

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 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

Barracuda Essentials
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: September 2025.
872,655 professionals have used our research since 2012.