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Barracuda Email Protection vs Kaspersky Security for Mail Server comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 3, 2024

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

Microsoft Defender for Offi...
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Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
52
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (2nd), Microsoft Security Suite (10th), Secure Email Gateway (SEG) (1st)
Barracuda Email Protection
Ranking in Email Security
15th
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
18
Ranking in other categories
Email Archiving (2nd), Office 365 Protection (5th)
Kaspersky Security for Mail...
Ranking in Email Security
30th
Average Rating
7.6
Reviews Sentiment
7.5
Number of Reviews
7
Ranking in other categories
Secure Email Gateway (SEG) (12th)
 

Mindshare comparison

As of July 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 12.3%, down from 16.9% compared to the previous year. The mindshare of Barracuda Email Protection is 3.0%, up from 1.7% compared to the previous year. The mindshare of Kaspersky Security for Mail Server is 0.8%, down from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security
 

Featured Reviews

Tolu Omolaja - PeerSpot reviewer
Great URL scanning and attachment scanning, but I would like more proactive threat analysis
The two main features that prove most beneficial for us are URL scanning and attachment scanning. URL scanning involves an automatic scan of links and emails. When a user clicks on a link within an email, the system promptly checks the link's safety. If the link is deemed safe, access is granted automatically. However, if it is flagged as unsafe, we receive feedback and notification to caution us about the potentially harmful link. At this point, we are presented with the option to proceed or return. I have personally witnessed the system identify a few unsafe links, making this the primary advantage of using the solution. The second crucial aspect is the scanning of attachments. When an email containing an attachment arrives, we receive a notification of the new email, along with information that the attachment is being scanned for threats. This additional layer of security provides peace of mind for our organization. While Microsoft Defender for Office 365 offers numerous features, these two stand out as particularly impressive and valuable to us.
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.
Taha Khaleel - PeerSpot reviewer
A highly reliable solution that provides monitoring capabilities and protection to multiple types of devices
The initial setup of Kaspersky Security for Mail Server is very easy. The initial setup of Kaspersky Security for Mail Server takes around four minutes. The solution is deployed on the cloud and on-premises. For the deployment process, you can buy the solution in a CD form or purchase it directly from the company website and activate it. My company needs managers, engineers, and developers to deploy the solution. The number of people required for the deployment process changes from time to time, so all the staff are included not just for the deployment of the solution but also to make improvements to the solution in the future. You can contact Kaspersky to see if they can provide the solution with integration capabilities for your company by providing you with an open account, which I haven't tried yet, though I plan to try it in the future.

Quotes from Members

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

Pros

"The initial setup was easy."
"The good part is that you don't have to configure it, which is very convenient."
"The most valuable aspect of Microsoft Defender for Office 365 is its ability to protect us from malware."
"The initial setup is straightforward. You just add the license, click it, and then you can set up the rules. It is quite simple."
"The deployment capability is a great feature."
"My experience deploying Microsoft Defender for Office 365 was seamless."
"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."
"The archiving and search features are very good."
"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 aspect includes attempts to spoof or compromise domains from external sources."
"We check the reports sometimes to see that frequent attacks and malicious emails are being blocked by the solution."
"The most helpful aspect for me is the out-of-the-box configuration, which is fairly good."
"The most valuable features are security and ease of use."
"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."
"The most valuable features are the anti-phishing and anti-spam capabilities."
"The integration rate is very high in Kaspersky, which is why most of our customers like it."
"I find the product valuable because it provides easy integration with other platforms like Fortinet firewalls."
"We have achieved cost savings of up to thirty percent by using Kaspersky Security for Mail Server."
"The most valuable feature is the straightforward setup."
"You can install the plugins on the same machine hosting your exchange solution. It's a good complement for Sophos security, which scans the traffic before it reaches your mail service. Kaspersky is on the mail server itself while Sophos handles the incoming traffic. With both of them working together, we have the perfect solution for mail."
"The most valuable feature of the solution stems from the fact that it is a highly reliable and dependable solution."
 

Cons

"We still see many false positives from time to time with Microsoft Defender for Office 365, so it would be good if we can reduce those false positives and provide better workflows for our end users, as sometimes they may not know what to do when they encounter a false positive."
"In some situations, it has not been able to pick impersonated emails having no attachments. Technical support definitely has a scope for improvement."
"Microsoft should provide more documentation for users so they can self-educate. I would like to see more documentation for advanced security features."
"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's Mac functionality requires improvement to deliver the same level of protection found on Windows devices."
"One area for improvement is support, in terms of being able to reach them and, especially, technical support for configuration."
"Specifically, within Microsoft Defender for Office 365, I want it to improve the DLP capabilities."
"In one of the reports I can get the exact place where a vulnerable file resides. But for that, I need to explicitly go into the device and check. If they could include that file part in the report, without my having to go to the device itself, that would help."
"The customer service and support could be improved if the support were available directly in Europe. Currently, the support is often managed from India, so we sometimes need to wait due to the time zone difference. It would be quicker and better if the support were provided by European staff."
"The platform's pricing needs improvement."
"They could simplify the licensing and the pricing."
"The solution's graphical user interface (GUI) could be improved visually."
"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 better integration with other products."
"The technology works on a supervised engine, but it would be better if it ran on an unsupervised engine."
"Two to three months back, we got fraudulent emails in which someone in the organization was being blamed."
"The solution is not 100 percent stable and that can use improvement."
"It would be great if Kaspersky could do what Sophos does for us. However, we love having these two different technologies doing the same thing. Sometimes Sophos has the patch to block a novel threat, but Kaspersky doesn't."
"I rated the overall solution a five out of ten. If a user is looking for a low-budget solution with mid-level security without AI features, Kaspersky Security for Mail Server is suitable."
"Kaspersky lacks in the area of customization, so simpler customization options need to be provided to users."
"I have only made contact via email, and it is a little slow. I would give customer service a rating of six or seven. Improving Spanish support would greatly benefit users."
"Encrypted email attachments are not being monitored by this solution, which is an area that they need to work on."
"The biggest problem in the solution is related to its license renewal since it is pretty hard in Kaspersky to find out the procedure to renew a license."
 

Pricing and Cost Advice

"Microsoft Defender is expensive. I typically recommend it only if clients have the budget. Otherwise, I would suggest an alternative."
"The license is expensive because the cost is based on the number of users."
"The product is very expensive."
"It is much more expensive than using another solution because we have had to include some options and upgrade our license."
"The product is expensive."
"The pricing has become expensive."
"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 price of Barracuda Essentials is better than some of the competing products."
"Despite a list price possibly around $40 per user, their market price allows customers to easily buy the solution."
"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 solution's pricing is moderate, where it is neither cheap nor expensive."
"Barracuda licensing model is good."
"Price-wise, this product is middle-of-the-road."
"The product is expensive."
"The price is similar to that of Microsoft 365."
"The solution offers one of the best prices possible to its users, making it even better than Barracuda. Kaspersky Security for Mail Server is ten times cheaper than Barracuda."
"The solution is not expensive."
"Price-wise, I would rate this product a four out of five. It could be a bit cheaper."
"My company makes annual payments towards the licensing costs solution."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
19%
Construction Company
8%
Manufacturing Company
7%
University
6%
Computer Software Company
13%
Financial Services Firm
12%
University
10%
Retailer
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

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 variou...
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?
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS recor...
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 t...
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 ...
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 defa...
What do you like most about Kaspersky Security for Mail Server?
The most valuable feature of the solution stems from the fact that it is a highly reliable and dependable solution.
What is your experience regarding pricing and costs for Kaspersky Security for Mail Server?
The pricing is moderate. It is not expensive but not cheap either. For Mexico, a good price is about 20 dollars per a...
What needs improvement with Kaspersky Security for Mail Server?
I believe integration with other platforms like Fortinet firewalls and a feature similar to a SIEM ( /categories/secu...
 

Also Known As

MS Defender for Office 365
Barracuda Essentials
No data available
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
ACT Government, Acumen Group, AGIP, Delta Dental Plans Association, Desai/Nasr Consulting Engineers, Inc., Equinox Information Systems
Vimpel Com, Estrella Galicia, Krombacher
Find out what your peers are saying about Barracuda Email Protection vs. Kaspersky Security for Mail Server and other solutions. Updated: June 2025.
860,592 professionals have used our research since 2012.