Microsoft Defender for Office 365 vs Trend Micro Deep Discovery Email Inspector comparison

Microsoft and Trend Micro are both solutions in the Email Security category. Microsoft is ranked #1 with an average rating of 8.5, while Trend Micro is ranked #28 with an average rating of 8.5. Microsoft holds a 13.1% mindshare in Email Security, compared to Trend Micro’s 0.4% mindshare. Additionally, 96% of Microsoft users are willing to recommend the solution, compared to 100% of Trend Micro users who would recommend it.

Microsoft Defender for Offi...

Read 48 Microsoft Defender for Office 365 reviews

13,537 Views
10,561 Comparison Views

96% willing to recommend

Trend Micro Deep Discovery ...

Read 7 Trend Micro Deep Discovery Email Inspector reviews

664 Views
131 Comparison Views

100% willing to recommend

Microsoft Defender for Offi...

Trend Micro Deep Discovery ...

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 3, 2024

Trend Micro Deep Discovery Email Inspector and Microsoft Defender for Office 365 are competing products, both providing advanced threat protection for email security. Microsoft Defender for Office 365 is perceived as having the upper hand due to its extensive features and integration within the Microsoft ecosystem, making it a preferred solution for enhanced security.

Features: Trend Micro Deep Discovery Email Inspector offers features such as simple analysis of phishing emails, a user-friendly UI for email detection, and visibility into the network with fast sandboxing technology. On the other hand, Microsoft Defender for Office 365 provides features like URL Threat Protection, anti-malware capabilities, data loss prevention policies, and Threat Explorer for real-time security attack analysis.

Room for Improvement: Trend Micro could enhance its response time for alerts, improve sandboxing efficiencies, and refine user interface elements for more streamlined operation. Microsoft Defender for Office 365 may benefit from simplifying threat configuration processes, enhancing information protection for different cloud services, and improving response times for phishing attacks.

Ease of Deployment and Customer Service: Trend Micro offers flexible deployment options tailored to various infrastructures and is noted for its responsive support services. Microsoft Defender enjoys smooth integration within Microsoft environments, simplifying deployment but may not offer the same personalized support level that Trend Micro provides, despite its broader reach.

Pricing and ROI: Trend Micro Deep Discovery Email Inspector is recognized for a more favorable setup cost structure, leading to a better initial ROI. However, Microsoft Defender for Office 365 might entail a higher upfront investment but offers a comprehensive security package that can justify the expense over time through reduced risk exposure and increased productivity, balancing initial costs against the capabilities offered.

To learn more, read our detailed Microsoft Defender for Office 365 vs. Trend Micro Deep Discovery Email Inspector Report (Updated: April 2025).

Buyer's Guide

Microsoft Defender for Office 365 vs. Trend Micro Deep Discovery Email Inspector

April 2025

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Helped 847,625 peers since 2012

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...

Ranking in Email Security

1st

Average Rating

8.2

Reviews Sentiment

7.1

Number of Reviews

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

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of April 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 13.1%, down from 19.0% 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. It is calculated based on PeerSpot user engagement data.

Email Security

Featured Reviews

Tolu Omolaja

Head of Department of Network Communications at Eko electricity

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.

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Rejwana Rahman

Key Account Manager, Cyber Security & Network Infrastructure at Trustaira

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…

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Quotes from Members

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

Pros

"Microsoft Defender for Office 365 is a stable solution."

"It’s easy to handle integrations, and we don't need a lot of people in our IT team."

"The most valuable feature of Microsoft Defender for Office 365 is its spam filter."

"I would say that 90% of the spam and phishing attack emails get blocked right off the bat."

"Microsoft Defender for Office 365's most valuable feature is its performance."

"The product's scalability is good."

"Safe attachments, safe links, policies, and the ability to protect from zero-day threats are the most valuable features."

"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."

More Microsoft Defender for Office 365 pros

"I like that it is very user-friendly and easy to install."

"I highly recommend Trend Micro Deep Discovery Email Inspector due to its security and scalability features."

"The most valuable feature of Trend Micro Deep Discovery Email Inspector is the simple analysis of phishing emails."

"I find Trend Micro to be a good solution for security purposes."

"Trend Micro is a very good product."

"I would rate the solution's stability at ten out of ten."

"The solution's most valuable features include visibility into the network and fast sandboxing technology for alerts, though response time can vary."

"It can effectively monitor outbound and inbound devices."

Cons

"One area for improvement is support, in terms of being able to reach them and, especially, technical support for configuration."

"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."

"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."

"They have moved features from one console to another. Things have been moved around in the interface and it takes me time to find where certain features are."

"The only thing they should improve is the licensing model. They should stop changing it. A year ago, the five features I mentioned were included in one product. Now, three of them are bundled into one product, and you have to pay extra for the other two. I don't mind paying extra, but I don't want them to change it every year or every six months. I need to know what I'm looking at and not worry about it next year."

"Microsoft Defender for Office 365's Mac functionality requires improvement to deliver the same level of protection found on Windows devices."

"There is room for improvement in terms of reporting."

"You should be able to deploy Defender for every subscription without the need to add servers."

More Microsoft Defender for Office 365 cons

"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."

"Trend Micro's technical support has room for improvement. More efficient support should be provided, especially for standard support."

"The dashboard could be improved to match the quality of Check Point Harmony's dashboard."

"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)."

"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's technical support has room for improvement."

"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."

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."

"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."

"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."

"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 has become expensive."

"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."

"It's a user-base subscription."

"The product is expensive."

More Microsoft Defender for Office 365 pricing and cost advice

"The price of Trend Micro Deep Discovery Email Inspector is less expensive than Microsoft solutions."

"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 high, and I would rate it an eight out of ten."

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847,625 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

16%

Financial Services Firm

Manufacturing Company

Government

Computer Software Company

14%

Financial Services Firm

10%

Media Company

Security Firm

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 various email campaigns, pinpointing where they emanate from, and identifying the indi...

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What is your experience regarding pricing and costs for Microsoft Defender for Office 365?

I don't have detailed specifics on pricing, setup cost, or licensing.

See all answers

What needs improvement with Microsoft Defender for Office 365?

I am generally satisfied with how it currently is. If I could improve anything, I would reduce the cost.

See all answers

What do you like most about Trend Micro Deep Discovery Email Inspector?

It can effectively monitor outbound and inbound devices.

See all answers

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 is comparable to other equal products. I would rate the pricing as nine out of ...

See all answers

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-reviews )'s dashboard. There is also room for improvement in introducing AI featur...

See all answers

Comparisons

Proofpoint Email Protection vs Microsoft Defender for Office 365

Compared 14% of the time

Check Point Harmony Email & Collaboration vs Microsoft Defender for Office 365

Compared 7% of the time

Hornetsecurity 365 Total Protection vs Microsoft Defender for Office 365

Compared 5% of the time

Mimecast Email Security vs Microsoft Defender for Office 365

Compared 5% of the time

Abnormal Security vs Microsoft Defender for Office 365

Compared 5% of the time

More Microsoft Defender for Office 365 Competitors

Trend Micro InterScan Messaging Security vs Trend Micro Deep Discovery Email Inspector

Compared 76% of the time

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

Compared 24% of the time

More Trend Micro Deep Discovery Email Inspector Competitors

Product Reports

Buyer's Guide

Microsoft Defender for Office 365

March 2025

Microsoft Defender for Office 365 report

Download Microsoft Defender for Office 365 product report

Buyer's Guide

Email Security

April 2025

Trend Micro Deep Discovery Email Inspector report

Download Trend Micro Deep Discovery Email Inspector product report

Also Known As

MS Defender for Office 365

Deep Discovery Email Inspector

Overview

Microsoft Defender for Office 365 is a comprehensive security solution designed to protect organizations against advanced threats in their email, collaboration, and productivity environments. It combines the power of Microsoft's threat intelligence, machine learning, and behavioral analytics to provide real-time protection against phishing, malware, ransomware, and other malicious attacks.

With Microsoft Defender for Office 365, organizations can safeguard their email communication by detecting and blocking malicious links, attachments, and unsafe email content. It employs advanced anti-phishing capabilities to identify and prevent sophisticated phishing attacks that attempt to steal sensitive information or compromise user credentials.

This solution also offers robust protection against malware and ransomware. It leverages machine learning algorithms to analyze email attachments and URLs in real-time, identifying and blocking malicious content before it reaches users' inboxes. Additionally, it provides advanced threat-hunting capabilities, allowing security teams to proactively investigate and respond to potential threats.

Microsoft Defender for Office 365 goes beyond email protection and extends its security features to other collaboration tools like SharePoint, OneDrive, and Teams. It scans files and documents stored in these platforms, ensuring that they are free from malware and other malicious content. It also provides visibility into user activities, helping organizations detect and mitigate insider threats.

Furthermore, this solution offers rich reporting and analytics capabilities, providing organizations with insights into their security posture and threat landscape. It enables security administrators to monitor and manage security incidents, track trends, and take proactive measures to enhance their overall security posture.

Microsoft

Stop spear phishing attacks and targeted ransomware

Trend Micro

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

Buyer's Guide

Microsoft Defender for Office 365 vs. Trend Micro Deep Discovery Email Inspector

April 2025

Free Report: Microsoft Defender for Office 365 vs. Trend Micro Deep Discovery Email Inspector

Find out what your peers are saying about Microsoft Defender for Office 365 vs. Trend Micro Deep Discovery Email Inspector and other solutions. Updated: April 2025.

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