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LevelBlue MailMarshal vs Trellix Collaboration Security 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

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
Trellix Collaboration Security
Ranking in Secure Email Gateway (SEG)
5th
Average Rating
8.8
Reviews Sentiment
6.9
Number of Reviews
21
Ranking in other categories
Email Security (10th), Instant Communications Security and Compliance (2nd), AI Security (14th)
 

Mindshare comparison

As of October 2026, in the Secure Email Gateway (SEG) category, the mindshare of LevelBlue MailMarshal is 2.0%, up from 0.8% compared to the previous year. The mindshare of Trellix Collaboration Security is 6.1%, up from 2.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Trellix Collaboration Security6.1%
LevelBlue MailMarshal2.0%
Other91.9%
Secure Email Gateway (SEG)
 

Featured Reviews

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.
Jorge Abalo - PeerSpot reviewer
Endpoint Security Analyst at BNP Paribas
Endpoint protection has strengthened network control and has simplified global threat response
In my opinion, the best features Trellix Collaboration Security offers include the firewall, the on-access scan, and the ability to obtain daily signatures for the latest malware. These daily signatures, referred to as content, ensure that we are protected against the most recent malware threats recognized by other companies. Another feature I particularly enjoy is the capability to maintain different locations that can communicate with the fabric, or DXL fabric as I refer to it, allowing me to create something akin to an EDR for immediate responses to resolve issues. The DXL fabric has helped my organization by enabling communication between different locations, such as one in Europe, another in South America, and one here. This fabric communicates with a broker that interacts with the TIE servers, which maintain the reputation of files, certificates, and known signatures from various regions including Europe, South America, and Canada. When something suspicious occurs, such as a certificate appearing malicious on an application, I can easily click and indicate that I trust this file, and through the fabric, I can apply an exclusion for that application across all locations simultaneously. Other features I find valuable include the SSO integration with Trellix EPO, specifically SAML SSO, allowing people not to have to manage usernames and passwords if they already utilize an SSO service for SAML; I consider this functionality to be quite beneficial.

Quotes from Members

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

Pros

"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."
"The product's most valuable features are spam protection and artificial intelligence."
"It is one of the greatest solutions to have or to complement any other security solution such as Proofpoint or IronPort."
"FireEye ETP has blocked several campaigns that lead to the post compromise deployment of ransomware, Obfuscated Outlook Phishing impersonation, Attachment based Phishing."
"The major features of Trellix Collaboration Security are URL analysis and file inspection, which are considered the crown of the product."
"The product helps reduce the number of malicious emails reaching the user's inbox."
"FireEye Email Security helps us prevent spam and phishing emails and all other business-compromised email attacks."
"I'd recommend the product due to the fact that it can stop most of the phishing and malicious items from getting through our email."
"After implementing Trellix Collaboration Security, we have not encountered any incidents related to ransomware."
"A specific example of how I have used Trellix Collaboration Security in my consulting work is in my current work environment, where I manage over 130,000 endpoints, allowing me to protect each endpoint with a firewall, which makes a significant difference because the entire network is not protected by a network firewall alone."
 

Cons

"There is room for improvement in GUI because it is a bit old-fashioned."
"The technical support services and stability need improvement as well."
"Support services need enhancement. The existing support team is derived from both McAfee and FireEye, with FireEye having been more adept in support."
"I would like to see this solution become more flexible."
"Sometimes especially zero-day spam emails can be passed to the user's inbox."
"I would rate them as a 1.5. The new hub created in India is not good."
"I deduct two points because while we are using it for insiders, we still rely on another solution for gateway level security, which makes us use two different solutions for the same purpose."
"In general, our company should make the tool more robust to protect our systems."
"The cloud product is not open to the customers. If the system itself could be more open to the customer, I'd be able to configure it more specifically."
"The spam detection feature could be better."
 

Pricing and Cost Advice

"It is a cost-effective product."
"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."
"The solution requires a license to be purchased for every user."
"The licensing is on a yearly basis."
"The cost is very high."
"I rate the product price as nine out of ten, where ten is the most expensive, and one is the cheapest. There is no need to pay any extra charges apart from the licensing costs."
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Top Industries

By visitors reading reviews
No data available
Construction Company
14%
Healthcare Company
12%
Comms Service Provider
12%
Manufacturing Company
11%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise7
Large Enterprise17
 

Questions from the Community

Ask a question
Earn 20 points
What needs improvement with FireEye Email Security?
A few areas stand out: Market coverage. The product needs to expand into markets it currently doesn't fully serve — North Africa in particular — and address the sales restrictions that exist in cer...
What is your primary use case for FireEye Email Security?
Trellix Collaboration Security is a tool used for file inspection, URL analysis, behavioral analysis, and integration with existing security tools. The product mainly serves the purpose of scanning...
What advice do you have for others considering FireEye Email Security?
Trellix Collaboration Security has seamless integration with most vendors, especially the SIEM solutions vendors, which is an advantage. There is, however, room for improvement in support services,...
 

Also Known As

Trustwave SEG
FireEye Email Security
 

Overview

 

Sample Customers

Information Not Available
Northshore Utility District, Luz Technologies, Air Academy Federal Credit Union, Bank Gutmann, Bank of Thailand, Penn State Health Milton S. Hershey Medical Center, State of Missouri, City and County of San Francisco, Denver Public Schools, Vodafone, Go Auto, Stater Bros. Market
Find out what your peers are saying about LevelBlue MailMarshal vs. Trellix Collaboration Security and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.