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Fortinet FortiMail vs Fortra's Clearswift Secure Email Gateway 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

Fortinet FortiMail
Ranking in Email Security
5th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
67
Ranking in other categories
No ranking in other categories
Fortra's Clearswift Secure ...
Ranking in Email Security
36th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
0
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Email Security category, the mindshare of Fortinet FortiMail is 3.3%, down from 5.4% compared to the previous year. The mindshare of Fortra's Clearswift Secure Email Gateway is 1.0%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Fortinet FortiMail3.3%
Fortra's Clearswift Secure Email Gateway1.0%
Other95.7%
Email Security
 

Featured Reviews

Abhimanyu Das - PeerSpot reviewer
Senior Associate at a tech vendor with 10,001+ employees
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.
PC
Systems Administrator at a financial services firm with 1,001-5,000 employees
Stable, but malware needs improvement and customer support is poor
They need to improve the malware in the product. I am not satisfied with Clearswift because of the lack of customer support. The support is poor, the supplier takes a lot of time and it's expensive. We have some issues here when I contact the supplier, it takes a lot of time for them to get back to us but there's no solution. I am now looking at Symantec as a possible alternative.

Quotes from Members

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

Pros

"The solution has a user-friendly interface. It is easy to deploy and handle. You can easily troubleshoot the issues of the solution."
"This excellent email gateway minimizes spam, inspects suspicious emails and isolates infected attachments with little administrative effort."
"Clean user interface and good sandbox."
"The most valuable feature of the solution is the tool's ability to prevent phishing attacks."
"The product's initial setup phase was very easy."
"The GUI isn't hard to use. When we do a demo and explain the features of Fortinet products to our customers, they understand very quickly. They can easily manage their systems without us."
"The integration with FortiSandbox is good, and something that we utilize often."
"We found the initial setup to be mostly straightforward."
"Ability to create your own content-filtering policies with relative ease."
"A stable solution."
 

Cons

"The infrastructure could be improved."
"The tool needs to improve its pricing policy. Also, it needs to be more user-friendly. I would want it to improve email security as well."
"Such kinds of things, raised from the point from the objective actually, we are using Fortinet FortiMail. We don't find any kinds of challenge or difficulties, but Fortinet FortiMail is more efficient and more effective for us. I don't know for other client, but for us, Fortinet FortiMail is very effective Like, for instance, if it is possible, let's say some kind of high threat is actually encountered if it could be possible to SMBs in our smartphone, or mobile apps, kinds of thing, if Fortinet FortiMail is available to monitor the thing using from our mobile phone from our smartphone. If such kinds of things are truly included, it will be more or good for us."
"It is not easy to install."
"Sometimes, authentic emails get blocked by the solution's firewall."
"Fortinet FortiMail should allow more flexibility with the content rules."
"Fortinet FortiMail can be improved in terms of its dashboard, which is small and not visually appealing, making deeper investigations difficult."
"I think they need to look into it and improve their signatures. This will help with blocking incoming spam emails."
"Malware needs improvement."
"FTP server and TRUST Manager functionality."
 

Pricing and Cost Advice

"Pricing is based on initial license purchase and use volume."
"It is reasonable."
"FortiMail is not cheap."
"The solution is reasonably priced compared to one of its competitors."
"We paid approximately $30,000 for the solution. It is less expensive than some other solutions. We have one license that carries all the features that we wanted."
"Fortinet Fortimail has reasonable pricing."
"It's not as that expensive with the competitive different brands. The products sell a lot."
"The price is acceptable for the support license it includes."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
12%
Comms Service Provider
8%
Financial Services Firm
8%
Educational Organization
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise22
Large Enterprise15
No data available
 

Questions from the Community

What needs improvement with Fortinet FortiMail?
In my opinion, points for improvement for Fortinet FortiMail include sometimes the speed and fine-tuning the false positive problems, especially with the signed PDF attachments and the whitelist an...
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Earn 20 points
 

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. Fortra's Clearswift Secure Email Gateway and other solutions. Updated: February 2026.
881,821 professionals have used our research since 2012.