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Kaspersky Security for Mail Server vs Microsoft Exchange Online Protection (EOP) comparison

 

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

Kaspersky Security for Mail...
Ranking in Email Security
32nd
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
8
Ranking in other categories
Secure Email Gateway (SEG) (11th)
Microsoft Exchange Online P...
Ranking in Email Security
7th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Anti-Malware Tools (12th)
 

Mindshare comparison

As of February 2026, in the Email Security category, the mindshare of Kaspersky Security for Mail Server is 0.6%, down from 0.9% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 4.3%, down from 7.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Microsoft Exchange Online Protection (EOP)4.3%
Kaspersky Security for Mail Server0.6%
Other95.1%
Email Security
 

Featured Reviews

ZS
Systems Specialist/ Administrator at ALFA International Company Limited.
User interface updates needed but achieves cost savings and threat protection
We are using Kaspersky Security for Mail Server to enhance our email system’s security and protect against threats Kaspersky Security for Mail Server handles spam and phishing attempts well. I have not experienced any spam issues. Its malware detection effectively manages the security of our…
NancyHartman - PeerSpot reviewer
Business Process Manager/ Educational Technologist at a educational organization with 1,001-5,000 employees
Layered email security has protected sensitive research and still flags phishing in real time
The valuable features of Microsoft Exchange Online Protection (EOP) include providing an additional layer of protection, as it builds on the basic Exchange level of security that allows us to get our work done. Another feature I appreciate is the ability to question things, as our Exchange server allows us to identify in real-time if an email is a phishing email or spam email. It really helps us identify risks, especially through our external exchanges via email or through our cloud-based platforms. Our Exchange system blocks any embedded AI from all our applications and products, so we cannot use embedded AI in our daily work from our official laptops because we have secure information. The system is quite locked down.

Quotes from Members

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

Pros

"The most valuable feature is the straightforward setup."
"The integration rate is very high in Kaspersky, which is why most of our customers like it."
"We have achieved cost savings of up to thirty percent by using Kaspersky Security for Mail Server."
"Kaspersky Security for Mail Server provides protection against email spams and blacklisted emails which are suspicious, making it a good product."
"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 features are the anti-phishing and anti-spam capabilities."
"The most valuable feature of the solution stems from the fact that it is a highly reliable and dependable solution."
"I find the product valuable because it provides easy integration with other platforms like Fortinet firewalls."
"The solution uses artificial intelligence and machine learning, so you don't need train it to detect something. The detection and response times are short. It's an excellent product."
"It offers great security against malware and other threats."
"It provides security to both on-premises and Azure infrastructures."
"The initial setup was easy. The configuration process is very straightforward."
"Microsoft EOP's most valuable feature is a shared mailbox."
"We can migrate seamlessly without any disruptions to our operations."
"The most valuable feature of Microsoft Exchange Online Protection is the accidental release of information protection capabilities. Additionally, the solution is easy to use."
"The email policy configuration options in Microsoft EOP are satisfactory."
 

Cons

"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."
"The solution is not 100 percent stable and that can use improvement."
"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."
"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."
"Kaspersky lacks in the area of customization, so simpler customization options need to be provided to users."
"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."
"Encrypted email attachments are not being monitored by this solution, which is an area that they need to work on."
"It doesn't protect against everything. We do need protection for, for example, endpoints."
"The product's end-of-life cycle could be extended."
"When you're using a Microsoft product solution, you can scale it, but if you're not, there are limitations."
"We have experienced issues while migrating from on-prem to the cloud. The tool needs to improve its stability."
"The price of Microsoft Exchange Online Protection could be reduced to make it more competitive."
"The biggest issue that I experience is that Microsoft keeps moving things around, and it's very inconsistent as to where you find the information when you're trying to work on different pieces."
"Our company faces difficulty with Microsoft Exchange Online Protection (EOP) because it's too big, clunky, and difficult for a small client to implement quickly and easily."
"Some features, like encryption, are not available."
 

Pricing and Cost Advice

"My company makes annual payments towards the licensing costs solution."
"Price-wise, I would rate this product a four out of five. It could be a bit cheaper."
"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."
"Regarding the price, it's comparable to other service providers. We've also looked at Check Point's offerings, and the pricing doesn't seem to be an issue."
"The product is expensive."
"It is a low-price solution."
"Microsoft Exchange Online Protection is a good solution at an affordable price. It is a good investment."
"Online Protection is fairly expensive."
"The solution should reduce the cost."
"The price of Microsoft Exchange Online Protection is reasonable."
"The solution's pricing is subscription-based rather than a yearly licensing cost. Pricing is based on the size of the environment and company and can be expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
10%
Retailer
10%
Manufacturing Company
9%
Computer Software Company
11%
Financial Services Firm
10%
Manufacturing Company
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Large Enterprise3
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise7
Large Enterprise11
 

Questions from the Community

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 agent.
What needs improvement with Kaspersky Security for Mail Server?
Regarding Kaspersky Security for Mail Server, I have not compared with other solutions, but I will compare and provide feedback. It is a reliable and fast security solution, and I can say it blocks...
What is your primary use case for Kaspersky Security for Mail Server?
I work on a mail protection service, specifically Kaspersky Security for Mail Server. I work with Kaspersky Security for Mail Server.
What do you like most about Microsoft Exchange Online Protection?
The initial setup was easy. The configuration process is very straightforward.
What needs improvement with Microsoft Exchange Online Protection?
From an end-user point of view, I am quite happy with Microsoft Exchange Online Protection (EOP) because my favorite feature is the ease with which I can identify if an email is a phishing email or...
What is your primary use case for Microsoft Exchange Online Protection?
Microsoft Exchange Online Protection (EOP) serves as the main use case for my company because, as a research company, we require a very high level of security. We use multiple authentication method...
 

Also Known As

No data available
Microsoft EOP, MS Exchange Online Protection
 

Overview

 

Sample Customers

Vimpel Com, Estrella Galicia, Krombacher
Information Not Available
Find out what your peers are saying about Kaspersky Security for Mail Server vs. Microsoft Exchange Online Protection (EOP) and other solutions. Updated: February 2026.
881,733 professionals have used our research since 2012.