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Fortra's Agari vs Trend Micro InterScan Messaging Security comparison

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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

Microsoft Defender for Offi...
Sponsored
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
52
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (2nd), Microsoft Security Suite (10th), Secure Email Gateway (SEG) (1st)
Fortra's Agari
Ranking in Email Security
38th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
4
Ranking in other categories
No ranking in other categories
Trend Micro InterScan Messa...
Ranking in Email Security
34th
Average Rating
7.0
Reviews Sentiment
7.1
Number of Reviews
3
Ranking in other categories
Secure Email Gateway (SEG) (14th)
 

Mindshare comparison

As of June 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 12.6%, down from 17.6% compared to the previous year. The mindshare of Fortra's Agari is 0.7%, up from 0.6% compared to the previous year. The mindshare of Trend Micro InterScan Messaging Security is 0.7%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security
 

Featured Reviews

Tolu Omolaja - PeerSpot reviewer
Great URL scanning and attachment scanning, but I would like more proactive threat analysis
The two main features that prove most beneficial for us are URL scanning and attachment scanning. URL scanning involves an automatic scan of links and emails. When a user clicks on a link within an email, the system promptly checks the link's safety. If the link is deemed safe, access is granted automatically. However, if it is flagged as unsafe, we receive feedback and notification to caution us about the potentially harmful link. At this point, we are presented with the option to proceed or return. I have personally witnessed the system identify a few unsafe links, making this the primary advantage of using the solution. The second crucial aspect is the scanning of attachments. When an email containing an attachment arrives, we receive a notification of the new email, along with information that the attachment is being scanned for threats. This additional layer of security provides peace of mind for our organization. While Microsoft Defender for Office 365 offers numerous features, these two stand out as particularly impressive and valuable to us.
TF
Helps to detect and generate reports on phishing emails and saves from email compromises
We use the solution for marketing and brand protection.  I am impressed with the tool's discovery capabilities which help me find out who is sending the emails on the company's behalf. I also find the ability to detect and generate reports on phishing emails a valuable feature.  The product's…
Abdul  Waris - PeerSpot reviewer
Deploy features like DLP and BEC for enhanced security
Multiple clients are using email security. We provide solutions based on what they need, and we configure them accordingly as per the requirement With Trend Micro email security gateway, we can deploy features like DLP and BEC. It includes Office 365 protection and sandboxing. This provides…

Quotes from Members

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

Pros

"The stability of Microsoft Defender for Office 365 is fantastic."
"The two main features that prove most beneficial for us are URL scanning and attachment scanning."
"Defender helps us prioritize threats across our organization."
"The most valuable aspect of Microsoft Defender for Office 365 is its ability to protect us from malware."
"Some of the valuable features on the email side are anti-phishing, anti-malware, and Safe Links."
"Microsoft Defender for Office 365's most valuable features are safe attachments and safe links."
"The solution is very easy to use. All you have to do is to assign the license to the end-user and it's done. The customer will only have the feature activated, and the solution will monitor the emails to determine if they are a threat or not."
"I like its investigation capabilities, as that is what is most important to me. It is fairly simple with a user-friendly interface."
"I am impressed with the tool's discovery capabilities which help me find out who is sending the emails on the company's behalf. I also find the ability to detect and generate reports on phishing emails a valuable feature."
"It comes with a lot of helpful tips for complicated areas."
"It is really important for large companies to have the brand protection that is provided by Agari."
"If spam or some kind of malicious email gets past Mimecast and gets into our email environment, we can go into Agari and we can search for it."
"The technical support services are excellent."
"With Trend Micro email security gateway, we can deploy features like DLP and BEC."
"The solution provides protection with its Email Track Records and Machine Manual features."
"With Trend Micro email security gateway, we can deploy features like DLP and BEC."
 

Cons

"There needs to be an improvement in integrating the product to work across multiple operating systems, and to have better support for non-Microsoft file types."
"One area for improvement is integration. For example, when it comes to external SaaS platforms, we were not able to get a lot of information on integrations with such apps for security and authentication."
"In one of the reports I can get the exact place where a vulnerable file resides. But for that, I need to explicitly go into the device and check. If they could include that file part in the report, without my having to go to the device itself, that would help."
"We are always looking for others tools to increase automation on tasks. There can be better integration with other solutions, such as PowerPoint and email."
"I am generally satisfied with how it currently is. If I could improve anything, I would reduce the cost."
"Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS records like SPF, DKIM, and DMARC are not properly published."
"There is a different console for different things; I just want one consolidated console."
"Sometimes, phishing emails manage to pass through the filter, so the system needs to enhance its phishing email detection capabilities."
"The product's user interface is clunky. We have difficulty in finding what we need. I would also like to see automation in the onboarding processes."
"The protocol is quite complicated, which may not be something that could be improved, but it would be better if it was simplified."
"Some customers in the financial sector do not like the cloud solution because they don't want data to be transferred to a US-based cloud."
"There is room for improvement in content filtration, expressions, file sharing, and policy configuration."
"There is room for improvement in content filtration, expressions, file sharing, and policy configuration."
"The product's pricing could be more flexible."
"The solution's pricing could be improved."
 

Pricing and Cost Advice

"Defender for 365 comes in various plans and licenses, along with other Microsoft security solutions. Purchasing this kind of package or security bundle gives good value for money, and that's what I recommend."
"The pricing is normal. Considering its popularity, it's not overpriced."
"Microsoft Defender for Office 365 comes with Microsoft Windows. It is free with the operating system."
"Microsoft Defender is expensive. I typically recommend it only if clients have the budget. Otherwise, I would suggest an alternative."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"It is much more expensive than using another solution because we have had to include some options and upgrade our license."
"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."
"The solution could be better by simplifying the business model of their licensing. It was hard to figure out how to get the licensing done for the environment, initially."
"The price of the licensing is based on the volume of email."
"The pricing depends on the number of users; per how many mailboxes you have, but they're pretty negotiable with that, too."
"The tool is not expensive and I would rate its pricing a four out of ten."
"I rate Trend Micro InterScan Messaging Security’s pricing a seven out of ten."
"Trend Micro is an expensive solution."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Financial Services Firm
15%
Computer Software Company
13%
Media Company
11%
Manufacturing Company
10%
Manufacturing Company
11%
Computer Software Company
11%
Financial Services Firm
11%
Performing Arts
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

What do you like most about Microsoft Defender for Office 365?
Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of variou...
What is your experience regarding pricing and costs for Microsoft Defender for Office 365?
Microsoft is quite affordable with a lot of features available for any size organization.
What needs improvement with Microsoft Defender for Office 365?
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS recor...
Ask a question
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What is your experience regarding pricing and costs for Trend Micro InterScan Messaging Security?
The price is a bit high because the market is highly competitive. Multiple platforms are available, so we have to cho...
What needs improvement with Trend Micro InterScan Messaging Security?
There is room for improvement in content filtration, expressions, file sharing, and policy configuration. We could de...
 

Also Known As

MS Defender for Office 365
No data available
InterScan Messaging Security
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
NACHA
Copa Airlines, Air21, BookMyShow, Bulgarian American Credit Bank, Canadian Museum of History, CIBIL, Community National Bank, Dar Al-Handasah
Find out what your peers are saying about Fortra's Agari vs. Trend Micro InterScan Messaging Security and other solutions. Updated: June 2025.
858,469 professionals have used our research since 2012.