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Microsoft Exchange Online Protection (EOP) vs Trend Micro Deep Discovery Email Inspector 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

Microsoft Exchange Online P...
Ranking in Email Security
6th
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
40
Ranking in other categories
Anti-Malware Tools (9th)
Trend Micro Deep Discovery ...
Ranking in Email Security
20th
Average Rating
7.8
Reviews Sentiment
7.1
Number of Reviews
8
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Email Security category, the mindshare of Microsoft Exchange Online Protection (EOP) is 6.0%, down from 8.6% compared to the previous year. The mindshare of Trend Micro Deep Discovery Email Inspector is 0.5%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security
 

Featured Reviews

Amber Worth - PeerSpot reviewer
Retrieves data from quarantines and easy to read logs with robust security features
Some of the searchability when looking for specifics in Exchange logs is tedious. Although eventually the information is located, it can be difficult if detailed information is lacking. Improving the search process by allowing searches with different types of parameters and facilitating searches within emails would be advantageous. Simplifying interfaces would also be appreciated.
Bilal Saleem - PeerSpot reviewer
Reliability and threat intelligence make this solution competitive, but AI improvements can further enhance its effectiveness
The best features of Trend Micro Deep Discovery Email Inspector include its reliability. The second valuable feature is its built-in sandbox feature, allowing for inspection of incoming emails and attachments. The sandbox is an appliance that opens any attachment in an enclosed environment to assess its impact and potential for viruses. This protects the network from harmful threats. Trend Micro has a very large R&D team with excellent threat intel, allowing them to provide better solutions than some competitors. They understand emerging threats based on the information from their EDR. The key strengths can be summarized as reliability, a good integrated one-box solution that includes a sandbox, and their R&D capabilities and good ratings, which lead to better threat intelligence. The detailed threat intelligence provided by Trend Micro Deep Discovery Email Inspector is valuable in understanding the behavior and tactics of potential email threats.

Quotes from Members

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

Pros

"You can use the product to create special accounts."
"I rate Microsoft Exchange Online Protection (EOP) nine out of ten."
"The initial setup of Microsoft Exchange Online Protection was easy."
"What I like most about Microsoft Exchange Online Protection is its integration with Windows, so we have one central view for all alerts and incidents."
"The security features provided by Microsoft are robust."
"The most valuable feature is the ease of administration. Other solutions require complex administration, but Microsoft Exchange Online Protection is easier."
"The initial setup is just a standard process."
"The most valuable features of Microsoft Exchange Online Protection are the EOP, ATP, safe links, fishing, and antispam."
"The most valuable feature of Trend Micro Deep Discovery Email Inspector is the simple analysis of phishing emails."
"The best features of Trend Micro Deep Discovery Email Inspector include its reliability."
"It can effectively monitor outbound and inbound devices."
"The solution's most valuable features include visibility into the network and fast sandboxing technology for alerts, though response time can vary."
"I would rate the solution's stability at ten out of ten."
"I like that it is very user-friendly and easy to install."
"Trend Micro is a very good product."
"I highly recommend Trend Micro Deep Discovery Email Inspector due to its security and scalability features."
 

Cons

"The product could be more stable. Microsoft products could be more stable because sometimes, even though they are updating some things, we cannot find those updates."
"When you're using a Microsoft product solution, you can scale it, but if you're not, there are limitations."
"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."
"Some of the searchability when looking for specifics in Exchange logs is tedious."
"The security compliance features need to be improved. Sometimes, a client's mailbox becomes full because of retained information and not because of mail. I would like to see improvement in block rules as well."
"Online Protection has an issue in that it doesn't provide an option to stop impersonation."
"If a company wants to put in line back-to-back anti-spam solutions, they need to work on that part because Microsoft recommends either you use EOP as a front line or you don't use it."
"The management interface of Microsoft Exchange Online Protection (EOP) could be intuitive."
"I would like to be able to send emails to a specific sandbox. This is a feature I would like to see added to the next release."
"The product's feature for message processing and blocking devices for bulk emails needs improvement."
"Trend Micro Deep Discovery Email Inspector could improve by making it easier to use. Microsoft solutions are easier to use."
"The tool needs to incorporate faster response times for issue detection, more detailed reports, and better compatibility with older operating systems (e.g., Windows 7, 8, Server 2012)."
"Trend Micro's technical support has room for improvement. More efficient support should be provided, especially for standard support."
"To improve Trend Micro Deep Discovery Email Inspector, it should have updates with better AI and ML-based integration."
"It could be more user-friendly, easier to install, and lighter on the network. I would say that for all products because you do not need technical expertise to take care of it. When you have a user-friendly solution, it makes it easier for the vendors or companies like us. We do not have to go to the client's site to attend to issues all the time. Because it is user-friendly, they can take care of it after some training."
"Trend Micro's technical support has room for improvement."
 

Pricing and Cost Advice

"Apart from the license fee for the solution, there are no additional costs."
"Microsoft Exchange Online Protection is a good solution at an affordable price. It is a good investment."
"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."
"Online Protection is fairly expensive."
"The product is bundled with Microsoft 365."
"The solution falls on the higher or more expensive side of the spectrum."
"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."
"On a scale of one to ten, where one is cheap, and ten is very expensive, I rate the pricing a six. For licensing, we can make monthly or yearly payments. Right now, we pay 5 USD per month to secure a person's license."
"The price of Trend Micro Deep Discovery Email Inspector is less expensive than Microsoft solutions."
"The solution's pricing is high, and I would rate it an eight out of ten."
"It's an expensive solution, and you may not see a return on investment in a short period of time. However, you will see a return over a long period of time."
"We pay for an annual subscription for this email security solution."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
9%
Government
8%
Manufacturing Company
8%
Computer Software Company
12%
Performing Arts
12%
Financial Services Firm
10%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Microsoft Exchange Online Protection?
The initial setup was easy. The configuration process is very straightforward.
What needs improvement with Microsoft Exchange Online Protection?
Reporting could be one of the areas for improvement, as they could put more reporting into Microsoft Exchange Online Protection (EOP) natively rather than requiring additional licensing or connecti...
What is your primary use case for Microsoft Exchange Online Protection?
The company does work with this technology, but not me personally. I manage some other products currently, mainly in the modern workplace space, such as Azure Virtual Desktop and Microsoft 365. I d...
What is your experience regarding pricing and costs for Trend Micro Deep Discovery Email Inspector?
On the pricing side, Trend Micro Deep Discovery Email Inspector is not the cheapest, but it's not the highest either. Its prices are around 80%, which is lesser than some vendors but higher than most.
What needs improvement with Trend Micro Deep Discovery Email Inspector?
To improve Trend Micro Deep Discovery Email Inspector, it should have updates with better AI and ML-based integration. While it has some capabilities in this area, focusing more on this aspect coul...
 

Also Known As

Microsoft EOP, MS Exchange Online Protection
Deep Discovery Email Inspector
 

Overview

 

Sample Customers

Information Not Available
Bank Saint Petersburg, CEITEC S.A., Dar Al-Handasah, Mitsubishi Electric Information Systems, Motilal Oswal Financial Services Ltd, OKWAVE, Oman Arab Bank, VakifBank
Find out what your peers are saying about Microsoft Exchange Online Protection (EOP) vs. Trend Micro Deep Discovery Email Inspector and other solutions. Updated: July 2025.
865,295 professionals have used our research since 2012.