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Microsoft Exchange Online Protection (EOP) vs Trend Micro InterScan Messaging Security [EOL] comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 8, 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

Microsoft Exchange Online P...
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Email Security (10th), Anti-Malware Tools (14th)
Trend Micro InterScan Messa...
Average Rating
7.0
Reviews Sentiment
7.1
Number of Reviews
3
Ranking in other categories
No ranking in other categories
 

Featured Reviews

NancyHartman - PeerSpot reviewer
Business Process Manager/ Educational Technologist at a educational organization with 1,001-5,000 employees
Layered email security has protected sensitive research and still flags phishing in real time
The valuable features of Microsoft Exchange Online Protection (EOP) include providing an additional layer of protection, as it builds on the basic Exchange level of security that allows us to get our work done. Another feature I appreciate is the ability to question things, as our Exchange server allows us to identify in real-time if an email is a phishing email or spam email. It really helps us identify risks, especially through our external exchanges via email or through our cloud-based platforms. Our Exchange system blocks any embedded AI from all our applications and products, so we cannot use embedded AI in our daily work from our official laptops because we have secure information. The system is quite locked down.
Abdul  Waris - PeerSpot reviewer
Tech Operations at Martin Dow Limited
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

"It offers great security against malware and other threats."
"We use the solution in all our environments. We use it for remedy tickets and give them updates. It was our main communication point."
"The solution's stability is very, very good. I didn't face any problems in the last year."
"The initial setup was easy. The configuration process is very straightforward."
"We can migrate seamlessly without any disruptions to our operations."
"The valuable features of Microsoft Exchange Online Protection (EOP) include providing an additional layer of protection, as it builds on the basic Exchange level of security that allows us to get our work done."
"It provides security to both on-premises and Azure infrastructures."
"We use the solution to receive emails. We do not use the calendar function as our clients are slow adaptors to the latest features."
"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."
"The technical support services are excellent."
 

Cons

"Having orchestration features added to Microsoft Exchange Online Protection, particularly automation and remediation, would be quite useful."
"The product's end-of-life cycle could be extended."
"The price of Microsoft Exchange Online Protection could be reduced to make it more competitive."
"Online Protection has an issue in that it doesn't provide an option to stop impersonation."
"The biggest issue that I experience is that Microsoft keeps moving things around, and it's very inconsistent as to where you find the information when you're trying to work on different pieces."
"The reporting needs a little bit of improvement."
"Our Exchange system is very locked down and secure, yet we still got hacked."
"It wasn't easy or intuitive enough for me to start using it. So, the reason was that the solution changed."
"The solution's pricing could be improved."
"There is room for improvement in content filtration, expressions, file sharing, and policy configuration."
"The product's pricing could be more flexible."
 

Pricing and Cost Advice

"The product is expensive."
"Microsoft Exchange Online Protection's pricing is a little bit more because its price has recently increased."
"The price could be lower."
"Online Protection is fairly expensive."
"The pricing for the solution depends on what you are trying to achieve with the use of the product, but I know that it is not a cheaply priced product. Yearly payments have to be made towards the licensing fees of the solution."
"The solution's pricing is subscription-based rather than a yearly licensing cost. Pricing is based on the size of the environment and company and can be expensive."
"The product's pricing is competitive for the US market."
"Microsoft Exchange Online Protection is a good solution at an affordable price. It is a good investment."
"Trend Micro is an expensive solution."
"I rate Trend Micro InterScan Messaging Security’s pricing a seven out of ten."
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921,523 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
12%
Comms Service Provider
9%
Manufacturing Company
8%
Outsourcing Company
7%
Performing Arts
17%
Construction Company
10%
Outsourcing Company
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise6
Large Enterprise13
No data available
 

Questions from the Community

What needs improvement with Microsoft Exchange Online Protection?
From an end-user point of view, I am quite happy with Microsoft Exchange Online Protection (EOP) because my favorite feature is the ease with which I can identify if an email is a phishing email or...
What is your primary use case for Microsoft Exchange Online Protection?
Microsoft Exchange Online Protection (EOP) serves as the main use case for my company because, as a research company, we require a very high level of security. We use multiple authentication method...
What advice do you have for others considering Microsoft Exchange Online Protection?
My experience with Microsoft Exchange Online Protection (EOP) is from an end-user perspective, and I do not have admin management experience. I am not familiar with the Advanced Threat Protection f...
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 choose based on comparison.
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 decrease the price in email security gateway and cloud security services.
What is your primary use case for Trend Micro InterScan Messaging Security?
Multiple clients are using email security. We provide solutions based on what they need, and we configure them accordingly as per the requirement.
 

Also Known As

Microsoft EOP, MS Exchange Online Protection
InterScan Messaging Security
 

Overview

 

Sample Customers

Information Not Available
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 Proofpoint, Microsoft, Check Point Software Technologies and others in Email Security. Updated: October 2026.
921,523 professionals have used our research since 2012.