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Kaspersky Security for Mail Server vs LevelBlue MailMarshal comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 24, 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

Kaspersky Security for Mail...
Ranking in Secure Email Gateway (SEG)
10th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
8
Ranking in other categories
Email Security (29th)
LevelBlue MailMarshal
Ranking in Secure Email Gateway (SEG)
14th
Average Rating
7.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Secure Email Gateway (SEG) category, the mindshare of Kaspersky Security for Mail Server is 2.9%, up from 2.1% compared to the previous year. The mindshare of LevelBlue MailMarshal is 2.0%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Kaspersky Security for Mail Server2.9%
LevelBlue MailMarshal2.0%
Other95.1%
Secure Email Gateway (SEG)
 

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…
FA
Cloud & Systems Admin at Service Management Group, Inc.
Offers clear vision on the clear side of what is being blocked and easy to use but a bit old-fashioned GUI
I would rate my experience with the initial setup a four out of ten when one is difficult, and ten is easy. It's difficult initially since it's an on-premise solution. So it's a bit difficult. So the initial assessment took a few days, and then the deployment was a couple of days. It is on-prem. That is also one of the improvements you need to make on the cloud. Most of the people like things to be on the cloud. You don't have the burden of setting up things on-premise.

Quotes from Members

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

Pros

"The primary use case of this solution is to filter emails and only allow the legitimate ones through."
"I find the product valuable because it provides easy integration with other platforms like Fortinet firewalls."
"The integration rate is very high in Kaspersky, which is why most of our customers like it."
"The most valuable features are the anti-phishing and anti-spam capabilities."
"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 is the straightforward setup."
"With both of them working together, we have the perfect solution for mail."
"Kaspersky Security for Mail Server provides protection against email spams and blacklisted emails which are suspicious, making it a good product."
"The product's most valuable features are spam protection and artificial intelligence."
"I like that it doesn't hold emails for any reason; it sends out notifications to the user as well as administrators. So we have a clear vision on the clear side of what is being blocked and in time as well."
 

Cons

"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."
"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."
"Encrypted email attachments are not being monitored by this solution, which is an area that they need to work on."
"The stability of Kaspersky Security for Mail Server is okay, not so much of an issue."
"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."
"Sometimes Sophos has the patch to block a novel threat, but Kaspersky doesn't."
"The technical support services and stability need improvement as well."
"There is room for improvement in GUI because it is a bit old-fashioned."
 

Pricing and Cost Advice

"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."
"Price-wise, I would rate this product a four out of five. It could be a bit cheaper."
"The solution is not expensive."
"My company makes annual payments towards the licensing costs solution."
"The pricing is in the middle. Compared to other products, it should be five out of ten, where one is cheap and ten is expensive."
"It is a cost-effective product."
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Top Industries

By visitors reading reviews
Retailer
13%
Construction Company
11%
Educational Organization
8%
Comms Service Provider
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Large Enterprise3
No data available
 

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.
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Also Known As

No data available
Trustwave SEG
 

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. LevelBlue MailMarshal and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.