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Fortinet FortiMail vs Trellix Email Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 18, 2026

Review summaries and opinions

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

ROI

Sentiment score
6.4
Fortinet FortiMail enhances email security with cost savings, reduced spam, efficient management, robust features, and improved productivity.
Sentiment score
6.4
Trellix Email Security cuts costs, boosts security, reduces incidents, and simplifies management, offering notable time-saving and ROI benefits.
It offers cost savings compared to Cisco, which was very expensive.
System admin at Environment Fund
It reduces costs by almost 40% or 45% compared to other security solutions.
Senior Technical Support Engineer at Digitaltrack
The question is what would happen if an organization did not have this security measure in place and got hit by ransomware.
Security Consultant at Trinexia
One of the main positive impacts of Trellix Email Security is its ability to detect and respond to phishing and suspicious email activity much faster.
Technical Business Analyst at a financial services firm with 10,001+ employees
 

Customer Service

Sentiment score
6.5
Fortinet FortiMail support is praised for responsiveness and expertise but criticized for variability based on region and tier.
Sentiment score
5.7
Trellix Email Security's customer service is praised for quick responses but criticized for inconsistency and lengthy solution times.
I have direct communication with Kenyan system engineers and local support in Ethiopia, enabling good support.
CTO at Malam Engineering PLC
Mainly, they are focusing on Fortinet FortiMail and FortiAnalyzer, where the support engineers are very good.
Head of the IT Security Division at a tech services company with 11-50 employees
Fortinet's technical support offers high-quality support.
System admin at Environment Fund
Solutions take three to four weeks maximum if you want something fixed.
Associate Cybersecurity Analyst at a tech vendor with 10,001+ employees
Trellix should have a dedicated center for the African market due to the unique dynamics and challenges within this region.
Partner Account Manager at a consumer goods company with 11-50 employees
We raise a case on the customer portal, and our engineer will be aligned with us, and the engineer resolves the issue.
Security Engineer at itsipl
 

Scalability Issues

Sentiment score
7.1
Fortinet FortiMail is scalable for various environments, suitable for mid-sized to enterprise users with virtual and on-premise options.
Sentiment score
6.1
Trellix Email Security offers scalable cloud and on-premises solutions, efficiently handling large volumes and evolving business needs cost-effectively.
The scalability of Fortinet FortiMail depends on whether you are buying a virtualized license, which allows for a scalable pay-as-you-go model, or if you are buying a box.
Head of the IT Security Division at a tech services company with 11-50 employees
Fortinet FortiMail is scalable and can be expanded in large environments.
Senior Cybersecurity Engineer at Kyndryl
The scalability rates at nine out of ten.
Senior Technical Support Engineer at Digitaltrack
I would rate scalability between eight and nine because Trellix Email Security can be deployed in the cloud or on-premises, and in terms of scale, it can handle any size.
Security Consultant at Trinexia
The scalability of Trellix Email Security is excellent.
Senior Soc Analyst at a consultancy with 11-50 employees
 

Stability Issues

Sentiment score
8.3
Fortinet FortiMail is highly rated for stability, reliability, effective spam handling, and seamless integration, requiring minimal fine-tuning.
Sentiment score
8.3
Trellix Email Security is reliable and stable, with high satisfaction in performance despite minor encryption deployment issues.
This stability is consistent across Fortinet products, including FortiGate firewall.
CTO at Malam Engineering PLC
In terms of product stability, I would rate Trellix Email Security between eight and nine because the solution is quite stable.
Security Consultant at Trinexia
Trellix Email Security is very stable, with no downtime noticed.
Team Manager at Ford
Whenever we deploy the product from the ePO console to that particular machine, it shows that the product is inactive.
Information Security Engineer at Nhq Distribution Ltd
 

Room For Improvement

Fortinet FortiMail requires interface refinement, improved features, better documentation, and enhanced integration with advanced threat detection and Fortinet’s ecosystem.
Trellix Email Security needs improvements in pricing, usability, reporting, and support, plus enhanced features and refined processes.
Providing comprehensive documentation on how to deploy and configure would improve the solution.
CTO at Malam Engineering PLC
The transition from on-premises devices to virtual appliances may be necessary as more organizations migrate email services to the cloud.
Head of computer systems at Indian Institute of Space Science & Technology(IIST)
There are also false positives issues, especially with signed PDF attachments.
Senior Cybersecurity Engineer at Kyndryl
If they provide better customization options, it would be easier to understand everything in a single dashboard instead of navigating through dropdown menus to see reports.
Senior Technical Support Engineer at Digitaltrack
I think there is a high number of false positives that also need attention.
Team Manager at Ford
They want to get the actual report on that, why they are sending and which way they are sending these emails.
Information Security Engineer at Nhq Distribution Ltd
 

Setup Cost

Fortinet FortiMail offers competitive appliance-based pricing, with flexibility and reliability, though higher than open-source alternatives.
Trellix Email Security is affordable, cost-effective, competitive against rivals, with minimal setup, user/mail-based licensing, and high satisfaction.
Fortinet FortiMail is considered overpriced by Indian rupee standards.
Head of computer systems at Indian Institute of Space Science & Technology(IIST)
The setup cost is a little bit costly.
Senior Cybersecurity Engineer at Kyndryl
I am satisfied with the secure licensing cost because compared to other solutions, Trellix Email Security is cheaper and provides most features.
Senior Technical Support Engineer at Digitaltrack
In my case, it is somewhat cost-effective and affordable.
Team Manager at Ford
The licensing is per user.
Security Engineer at itsipl
 

Valuable Features

Fortinet FortiMail provides strong security, usability, scalability, and performance for email threat detection and content control in diverse environments.
Trellix Email Security offers advanced AI detection, real-time scanning, and integration to enhance threat protection and email infrastructure security.
Its threat detection capabilities have been beneficial.
System admin at Environment Fund
The most valuable features are Fortinet FortiMail's ability to protect from advanced features of email-based attacks, including protection against ransomware and malware attacks.
CTO at Malam Engineering PLC
Fortinet FortiMail offers capabilities like settings for mail delivery, mail filtering, spam controls, and email bursting prevention.
Head of computer systems at Indian Institute of Space Science & Technology(IIST)
If users try to open links that have converted to phishing after some time, those need to be blocked.
Senior Technical Support Engineer at Digitaltrack
My experience with the malware analysis and quarantine features is that they are easy to manage and they have been very effective because we have been able to quarantine any suspicious emails or prevent any attempt before it affects our systems.
Team Manager at Ford
Monitoring and threat tracking in Trellix Email Security have the potential to reduce significantly the threats because I am able to review and analyze in real-time any potential threats to my environment and tackle them immediately.
Sr. Service Delivery Consultant at a consultancy with 201-500 employees
 

Categories and Ranking

Fortinet FortiMail
Ranking in Email Security
5th
Average Rating
8.6
Reviews Sentiment
6.8
Number of Reviews
68
Ranking in other categories
No ranking in other categories
Trellix Email Security
Ranking in Email Security
15th
Average Rating
8.8
Reviews Sentiment
6.2
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Email Security category, the mindshare of Fortinet FortiMail is 2.7%, down from 4.0% compared to the previous year. The mindshare of Trellix Email Security is 0.4%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Fortinet FortiMail2.7%
Trellix Email Security0.4%
Other96.9%
Email Security
 

Featured Reviews

Abhimanyu Das - PeerSpot reviewer
Senior Cybersecurity Engineer at Kyndryl
Targeted email filtering has reduced spam and phishing and now saves significant investigation time
The best features of Fortinet FortiMail include its techniques and tactics, which are highly effective compared to other solutions such as Microsoft 365. Although Fortinet FortiMail may not be as advanced in some aspects, it is well recognized for its strong performance in handling spam and phishing. It performs thorough mail scanning and also offers a sandboxing feature that enhances protection. Fortinet FortiMail has had a positive impact on my organization by significantly reducing unwanted email activities such as spam and phishing. It provides accurate detection and generates results that often exceed what can be achieved through manual analysis. Since deploying Fortinet FortiMail, I have observed a reduction in investigation time by at least 20 to 30 percent.
Anastasia Wairimu - PeerSpot reviewer
Team Manager at Ford
Gateway filtering has protected our organization and provides complete email threat prevention
In my opinion, the best features Trellix Email Security offers include its use for malware analysis as well as the enterprise-wide email quarantine system. My experience with the malware analysis and quarantine features is that they are easy to manage and they have been very effective because we have been able to quarantine any suspicious emails or prevent any attempt before it affects our systems. It is also very user-friendly and has a simple interface. Policies and rules are easy to create and they work with very little downtime or operational impact. Email delivery issues are easy to investigate and troubleshoot. Trellix Email Security has positively impacted my organization as it is user-friendly and does a good job detecting malicious attachments in email, providing complete email protection against all users and working well to stop advanced threats. The price is relatively the same as other competitors.
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Top Industries

By visitors reading reviews
Construction Company
9%
Financial Services Firm
8%
Manufacturing Company
8%
Computer Software Company
8%
Construction Company
14%
Computer Software Company
11%
Financial Services Firm
11%
Outsourcing Company
11%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise23
Large Enterprise15
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise4
Large Enterprise7
 

Questions from the Community

What needs improvement with Fortinet FortiMail?
I think they should improve Fortinet FortiMail on-premises by enhancing its user interface. Additional features they could have in the future would include advanced analytics capabilities. I do thi...
What is your primary use case for Fortinet FortiMail?
I do have a partnership with Fortinet. I have been both a partner and reseller.
What is your experience regarding pricing and costs for Trellix Email Security?
My experience with pricing, setup cost, and licensing for Trellix Email Security is that everything good has a price. When we look at the cost relative to what it secures, I think that is acceptabl...
What needs improvement with Trellix Email Security?
Trellix Email Security can be improved in several areas. Although it has almost all the features that an email security tool should have, it could advance further with different types of attacks th...
What is your primary use case for Trellix Email Security?
My main use case for Trellix Email Security is for external communication, where we use the IOCs that we already have for phishing domains to capture phishing emails. For internal emails and outbou...
 

Also Known As

FortiMail
No data available
 

Overview

 

Sample Customers

Magromer Cueros y Pieles S.A.
Information Not Available
Find out what your peers are saying about Fortinet FortiMail vs. Trellix Email Security and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.