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Fortra's Clearswift Secure Email Gateway vs Trend Micro Email Security [EOL] comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 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

Fortra's Clearswift Secure ...
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
0
Ranking in other categories
Email Security (31st)
Trend Micro Email Security ...
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
47
Ranking in other categories
No ranking in other categories
 

Featured Reviews

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.
AsadAli - PeerSpot reviewer
Soc Team Lead at Super Secure
Centralized protection has transformed email security and incident investigations by reducing false positives and improving behavioral threat detection
The challenges include the challenge of finalizing a product that has all the security features or capabilities that are usually required. For example, if there is an EDR platform that's just monitoring IDS signatures, it won't be as beneficial as one with behavioral monitoring and other critical aspects required according to the best practices of the industry. Additionally, if there is a product that can provide a centralized view Trend Vision One does, it really grabs the customer's interest because customers usually don't have to buy separate EDR, XDR, or SIEM solutions or a console for their SOC analyst or email security team. These challenges consist of managing multiple teams and products. Trend Micro Email Security comes in and solves these problems.Trend Micro Email Security is generally a bit more difficult to implement compared to the rest of the solutions such as network security modules or EDR modules, which are much easier. Trend Micro Email Security has some complexities in implementation, but there aren't any significant shortcomings that require Trend Micro to improve.

Quotes from Members

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

Pros

"Go for it! I think it's an excellent product with great technical support."
"We use a few features for web proxy, and another feature is the email content filter and malware for our internal policy in the email content."
"A stable solution."
"Ability to create your own content-filtering policies with relative ease."
"Trend Micro Email Security is a great point and a great advantage for us."
"The most valuable feature of Trend Micro Email Security is the security level it provides. The solution is efficient."
"The interface is really good."
"I advise those looking into using Trend Micro Email Security [EOL] that it is the best solution to stop spam, and I suggest this product to any customer."
"Trend Micro Email Security’s most valuable feature is spam filtering."
"Trend Micro Email Security [EOL] is very useful for the organization as an email gateway."
"Since installing Trend Micro Email Security, it has significantly improved the overall security of my organization."
"From an email security standpoint, the best features are that it is very convenient to configure new rules onto it and it gives very good insight on what has entered my system and what the email security solution has taken action upon."
 

Cons

"FTP server and TRUST Manager functionality."
"Malware needs improvement."
"I am not satisfied with Clearswift because of the lack of customer support."
"I have considered how Trend Micro Email Security [EOL] can be improved. The integration within Trend Micro environment is great, but if I want to integrate Trend Micro Email Security [EOL] with a third-party endpoint security solution, it is more challenging; if I am using Trend Micro production endpoint protection along with other Trend Micro-related solutions such as Trend Micro XDR, it works much better, but integrating with a third-party endpoint protection tool such as Microsoft Defender is different."
"The management interface of Trend Micro Email Security [EOL] looks a bit more legacy, and it can have a little bit more improvements in terms of modernizing the UI."
"In our company, we found out that the solution wasn't well-tested by Trend Micro, resulting in a performance and bandwidth problem."
"There is a limitation when customers are using their email from a third-party solution that isn't from Trend Micro."
"Trend Micro Email Security could improve by advancing its artificial intelligence in email security. There are rules that have to be configured. There should be less configuring."
"Trend Micro Email Security [EOL] can be improved, especially with the API, as more security enhancements and features such as a dashboard are needed to keep up with today's market of cloud-based solutions."
"The send box needs improvement to match other products."
"I wish Trend Micro Email Security [EOL] could improve by ensuring that if an attachment sent from an email is suspicious, it should be opened in another remote environment built by Trend Micro."
 

Pricing and Cost Advice

Information not available
"The solution's pricing is very optimum, given its quality, features, and stability."
"The price is more accessible compared to some other solutions, like FortiMail. It offers excellent value for the price."
"The price of Trend Micro Email Security is annual. There are no additional fees."
"The solution is inexpensive so we recommend it to small to mid-sized businesses."
"Trend Micro Email Security's pricing is reasonable."
"The cost is about $6,000 for 300 users for one year."
"It is expensive. The cost is per box, and it depends on how big your environment is. Prices range from 11 to 12 dollars for licenses and can fluctuate up and down, but for environments with 4,000 to 5,000 users, it can be between 6 to 8 dollars."
"The tool must improve its pricing."
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Top Industries

By visitors reading reviews
Construction Company
12%
Retailer
11%
Financial Services Firm
11%
Comms Service Provider
8%
Outsourcing Company
10%
Construction Company
9%
Manufacturing Company
9%
Financial Services Firm
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise17
Large Enterprise12
 

Questions from the Community

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What needs improvement with Trend Micro Email Security?
Trend Micro Email Security reduces noise from false positives by deploying the solution in staging mode or learning mode to learn all traffic and compare it with signatures in the database. Sometim...
What advice do you have for others considering Trend Micro Email Security?
I am using Trend Vision One sensors. I am using the cyber risk exposure management, CREM capability. CREM is a solution called Splunk, which I use with XDR, Trend Micro, along with different securi...
What is your primary use case for Trend Micro Email Security?
I work with Trend Micro Email Security as a customer, and I also worked with an integrator. I use Trend Micro Email Security to secure all access for all endpoints, for example, for enterprise or f...
 

Overview

 

Sample Customers

Information Not Available
MedImpact Healthcare Systems, Air21, Azra Solutions, CBOSS, De Montfort University, Depaeuw, DHR Health, Fukui University Hospital
Find out what your peers are saying about Proofpoint, Microsoft, Check Point Software Technologies and others in Email Security. Updated: October 2026.
920,769 professionals have used our research since 2012.