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Trend Micro Deep Discovery Email Inspector vs Trend Micro Email 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
49
Ranking in other categories
Advanced Threat Protection (ATP) (1st), Microsoft Security Suite (11th)
Trend Micro Deep Discovery ...
Ranking in Email Security
28th
Average Rating
8.0
Reviews Sentiment
7.0
Number of Reviews
7
Ranking in other categories
No ranking in other categories
Trend Micro Email Security
Ranking in Email Security
8th
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
27
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 12.9%, down from 18.3% compared to the previous year. The mindshare of Trend Micro Deep Discovery Email Inspector is 0.4%, up from 0.1% compared to the previous year. The mindshare of Trend Micro Email Security is 2.7%, down from 3.4% 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.
Rejwana Rahman - PeerSpot reviewer
Delivers strong security with potential for improved support efficiency
I sell solutions for security support. We offer an email gateway and serve bank clients I find Trend Micro to be a good solution for security purposes. In comparison to other software, SoftForce offers a very good solution. Trend Micro's technical support has room for improvement. More efficient…
Nadeem Syed - PeerSpot reviewer
Offers comprehensive security, easy integration, and good support
It integrated easily. About 99% of the time, we do not face any challenges in integrating any product of Trend Micro with the existing network. It is usually compatible with all kinds of networks. They have recently added AI to all Trend Micro products. It makes life a little bit easier by catching viruses, providing solutions, and helping out whenever you are stuck somewhere. It is one of the very good features they have right now. For example, one of our clients experienced a network attack and became confused about resolving the issues. The AI was helpful by suggesting initial steps to solve the problem.

Quotes from Members

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

Pros

"The most valuable feature of Microsoft Defender for Office 365 is its spam filter."
"Microsoft Defender for Office 365 has improved my organization's security. It makes it easier to manage the infrastructure without the help of third-party applications."
"Defender helps us prioritize threats across our organization."
"Microsoft Defender for Office 365 is a stable solution."
"The product's scalability is good."
"We use Microsoft Defender for its ability to integrate with existing business technologies, which is beneficial for protecting business areas."
"The deployment capability is a great feature."
"Our customers are satisfied with Defender for 365 because Microsoft products are easy to use and customize to meet the client's needs. Everything is in one place, so we can adjust policies as needed for phishing, DLP, ATP, or any other security features that our clients want to apply."
"I like that it is very user-friendly and easy to install."
"I find Trend Micro to be a good solution for security purposes."
"I would rate the solution's stability at ten out of ten."
"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 highly recommend Trend Micro Deep Discovery Email Inspector due to its security and scalability features."
"Trend Micro is a very good product."
"The most valuable feature of Trend Micro Deep Discovery Email Inspector is the simple analysis of phishing emails."
"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."
"The integration capability of the solution is good."
"The interface is really good."
"It is mostly stable."
"The tool provides a strong defense against attacks. It is also easy to use. Trend Micro Email Security's integration capabilities are great."
"The most valuable feature of Trend Micro Email Security is the security level it provides. The solution is efficient."
"Trend Micro Email Security’s most valuable feature is spam filtering."
"Trend Micro has inter-domain security features that solutions from other vendors like Forcepoint lack."
 

Cons

"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."
"Microsoft Defender for Office 365 could improve by giving customers information on techniques to prevent threats. For example, information about best practices on how to protect their own devices against hackers and scammers, such as educational information or training. This would help others have a better understanding of cyber security. Additionally, there can be more security features added."
"Microsoft needs to broaden its global support presence by establishing teams of subject-matter experts in all regions."
"The visibility for the weaknesses in the system and unauthorized access can be improved."
"There is room for improvement in terms of reporting."
"The phishing and spam filters could use some improvement."
"The XDR dashboard has room for improvement."
"The product must provide better malware detection."
"The product's feature for message processing and blocking devices for bulk emails needs improvement."
"Trend Micro's technical support has room for improvement."
"The dashboard could be improved to match the quality of Check Point Harmony's dashboard."
"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)."
"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. More efficient support should be provided, especially for standard support."
"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."
"Trend Micro Email Security should introduce new features, improvements, and updates which are cost-effective and easy to deploy."
"There needs to be more documentation for the product."
"It is a bit expensive than the market price."
"The only negative thing about Trend Micro Email Security is its price. It could be less expensive."
"They need to adjust the spam filtering and make it stronger."
"The solution's configuration policy should be easier."
"The company also needs to work on pricing because it is quite costly compared to other products."
"There is room for improvement in threat detection, especially for advanced attacks and business email compromise."
 

Pricing and Cost Advice

"While Microsoft Defender for Office 365 necessitates pricier E3 or E5 subscriptions, the extensive functionality offered by these licenses across various Microsoft products justifies the investment."
"The pricing has become expensive."
"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."
"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."
"It's a user-base subscription."
"The license is expensive because the cost is based on the number of users."
"Defender is a little bit more expensive as compared to others. We are in the manufacturing environment. So, we don't have a high budget for all of our endpoint devices. Its cost is a major concern for us."
"The product is very expensive."
"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."
"The solution's pricing is very optimum, given its quality, features, and stability."
"I rate the product price a six on a scale of one to ten, where one is low price and ten is high price."
"The solution is inexpensive so we recommend it to small to mid-sized businesses."
"The price of Trend Micro Email Security is annual. There are no additional fees."
"The price is more accessible compared to some other solutions, like FortiMail. It offers excellent value for the price."
"Trend Micro Email Security's pricing is reasonable."
"Price-wise, it is a cheap solution. I rate the solution's pricing a one on a scale of one to ten, where ten is expensive. Annual payments are made for the licensing."
"The price of Trend Micro Email Security is more than Sophos' similar solution."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
15%
Financial Services Firm
11%
Media Company
8%
Security Firm
7%
Computer Software Company
17%
Financial Services Firm
11%
Comms Service Provider
7%
Insurance Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
Money-wise, it is a part of the Office 365 ( /products/office-365-reviews ) suite, making it slightly more expensive ...
What needs improvement with Microsoft Defender for Office 365?
The main area for improvement is simplifying the implementation and rollout process. There are many conditions to be ...
What is your experience regarding pricing and costs for Trend Micro Deep Discovery Email Inspector?
The licensing cost is reasonable, and while additional features may require extra licensing fees, the overall pricing...
What needs improvement with Trend Micro Deep Discovery Email Inspector?
The dashboard could be improved to match the quality of Check Point Harmony ( /products/avaya-workforce-engagement-re...
What do you like most about Trend Micro Email Security?
The tool provides a strong defense against attacks. It is also easy to use. Trend Micro Email Security's integration ...
What needs improvement with Trend Micro Email Security?
There is room for improvement in mobile device management. The company also needs to work on pricing because it is qu...
What advice do you have for others considering Trend Micro Email Security?
I would definitely recommend it. Trend Micro is better than any of its competitors. I would rate it a nine out of ten...
 

Also Known As

MS Defender for Office 365
Deep Discovery Email Inspector
No data available
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Bank Saint Petersburg, CEITEC S.A., Dar Al-Handasah, Mitsubishi Electric Information Systems, Motilal Oswal Financial Services Ltd, OKWAVE, Oman Arab Bank, VakifBank
MedImpact Healthcare Systems, Air21, Azra Solutions, CBOSS, De Montfort University, Depaeuw, DHR Health, Fukui University Hospital
Find out what your peers are saying about Trend Micro Deep Discovery Email Inspector vs. Trend Micro Email Security and other solutions. Updated: April 2025.
850,028 professionals have used our research since 2012.