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

Microsoft and Trend Micro are both solutions in the Email Security category. Microsoft is ranked #5 with an average rating of 8.4, while Trend Micro is ranked #33 with an average rating of 7.0. Microsoft holds a 6.7% mindshare in Email Security, compared to Trend Micro’s 0.6% mindshare. Additionally, 90% of Microsoft users are willing to recommend the solution, compared to 100% of Trend Micro users who would recommend it.

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Executive SummaryUpdated on Dec 3, 2024

Trend Micro InterScan Messaging Security and Microsoft Exchange Online Protection compete in the email security market. Trend Micro appears advantageous in pricing and support, while Microsoft EOP offers superior features, justifying its price.

Features: Trend Micro InterScan Messaging Security provides robust threat detection, customizable policy enforcement, and excellent malware protection. Microsoft Exchange Online Protection offers advanced anti-spam capabilities, seamless integration with the Microsoft ecosystem, and comprehensive anti-malware features.

Ease of Deployment and Customer Service: Trend Micro has straightforward deployment and responsive customer service. Microsoft EOP integrates easily for businesses using Microsoft 365, but may present complexities during the initial setup.

Pricing and ROI: Trend Micro InterScan Messaging Security generally has a lower upfront cost, leading to quicker return on investment for budget-conscious buyers. Microsoft EOP may require a higher initial expenditure but offers strong long-term ROI through its extensive features and integration for larger organizations.

To learn more, read our detailed Microsoft Exchange Online Protection (EOP) vs. Trend Micro InterScan Messaging Security Report (Updated: April 2025).

Buyer's Guide

Microsoft Exchange Online Protection (EOP) vs. Trend Micro InterScan Messaging Security

April 2025

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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...

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 Microsoft Exchange Online Protection (EOP) is 6.7%, down from 9.1% compared to the previous year. The mindshare of Trend Micro InterScan Messaging Security is 0.6%, up from 0.5% 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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Sandeep G.

Senior Cyber Security Architecht at Cognizant

Easy to deploy and user-friendly with simple dashboards

I'm also using Microsoft Defender. We've also used Proofpoint. Proofpoint has more granularity. It also offers different features. Exchange Online and Defender offer safe attachments and anti-malware. However, they just have one single option for features, and you check a box, and it enables one blanket policy. With Proofpoint, you can choose your options. Microsoft products are good and more user-friendly in general. They are just missing the granularity aspect. In Proofpoint, the tap and trap work very well, and it has some kind of monitoring as well for the tap and trap. When you're moving from Proofpoint to Microsoft, if you need to do a comparison and if you need to showcase to the customer all features are working as expected, some functionalities might be a little difficult for us to showcase. Maybe that dashboard will differ. It's a common dashboard that we have for Microsoft. Maybe Proofpoint has got more features, however, for use cases, it'll be a little difficult to demonstrate to the customer. We've moved to this solution since we were moving the majority of our products to Azure. We wanted to move to the cloud to reduce hardware costs and avoid having a separate server, which we do not need for Exchange.

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Abdul Waris

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…

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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 facilitates efficient management and updates through the cloud. We do not have to worry about incompatibilities. It just works."

"It has significantly decreased my time to detection and response."

"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."

"The product's scalability is good."

"It gives us visibility into threats and, for endpoints, it helps us to prioritize threats. We used to have a lack of visibility, but now our time to detect and respond has decreased."

"Microsoft Defender for Office 365's most valuable features are safe attachments and safe links."

"The most valuable feature of Microsoft Defender for Office 365 is data backups that we can provide through ticket requests."

"Overall, I would rate Microsoft Defender for Office 365 at a ten."

More Microsoft Defender for Office 365 pros

"Online Protection's most valuable feature is its admin interface."

"The most valuable feature of Microsoft Exchange Online Protection is the accidental release of information protection capabilities. Additionally, the solution is easy to use."

"The most valuable feature is the ease of administration. Other solutions require complex administration, but Microsoft Exchange Online Protection is easier."

"The solution uses artificial intelligence and machine learning, so you don't need train it to detect something. The detection and response times are short. It's an excellent product."

"It is easy to configure, easy to use, easy to add exclusions, easy to track, and easy to add anything else if you want."

"It's definitely scalable."

"Microsoft EOP's most valuable feature is a shared mailbox."

"I like the product's ZAP feature."

More Microsoft Exchange Online Protection (EOP) pros

"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."

"The technical support services are excellent."

Cons

"The visibility for the weaknesses in the system and unauthorized access can be improved."

"There's room for improvement regarding the time frame for retrieving emails."

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

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

"Microsoft should provide more documentation for users so they can self-educate. I would like to see more documentation for advanced security features."

"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."

"Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS records like SPF, DKIM, and DMARC are not properly published."

"We need a separate license and we don't know how to get the license that is required."

More Microsoft Defender for Office 365 cons

"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 solution must improve the user experience."

"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."

"Performance and speed should continue to be improved."

"We would like the solution to have more in-built intelligence in the way that it reviews potential security risks, rather than our team constantly having to update the policies."

"Having orchestration features added to Microsoft Exchange Online Protection, particularly automation and remediation, would be quite useful."

"It doesn't protect against everything. We do need protection for, for example, endpoints."

"The solution can be complex at times. It would be nice to have the on-server version. It needs to improve the stability as well."

More Microsoft Exchange Online Protection (EOP) cons

"The solution's pricing could be improved."

"The product's pricing could be more flexible."

"There is room for improvement in content filtration, expressions, file sharing, and policy configuration."

Pricing and Cost Advice

"The license is expensive because the cost is based on the number of users."

"The pricing has become expensive."

"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."

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

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

"The pricing is normal. Considering its popularity, it's not overpriced."

"From the pricing point of view, like any other product in the market, there is scope for negotiation."

"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."

More Microsoft Defender for Office 365 pricing and cost advice

"The product is expensive."

"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 price could be lower."

"The solution should reduce the cost."

"The tool's pricing is excellent."

"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."

"Apart from the license fee for the solution, there are no additional costs."

More Microsoft Exchange Online Protection (EOP) pricing and cost advice

"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

Manufacturing Company

Government

Computer Software Company

15%

Financial Services Firm

Government

Manufacturing Company

Financial Services Firm

13%

Computer Software Company

12%

Manufacturing Company

10%

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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...

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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.

See all answers

What needs improvement with Microsoft Defender for Office 365?

Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS recor...

See all answers

What do you like most about Microsoft Exchange Online Protection?

The initial setup was easy. The configuration process is very straightforward.

See all answers

What needs improvement with Microsoft Exchange Online Protection?

I would like to improve the setting of rules in Microsoft Exchange Online Protection (EOP) as it is currently working...

See all answers

What is your primary use case for Microsoft Exchange Online Protection?

I am using Microsoft Exchange Online Protection (EOP) ( /products/microsoft-exchange-online-protection-eop-reviews ) ...

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What do you like most about Trend Micro InterScan Messaging Security?

The technical support services are excellent.

See all answers

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...

See all answers

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...

See all answers

Comparisons

Proofpoint Email Protection vs Microsoft Defender for Office 365

Compared 13% of the time

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

Compared 7% of the time

Mimecast Email Security vs Microsoft Defender for Office 365

Compared 5% of the time

Barracuda Email Protection vs Microsoft Defender for Office 365

Compared 5% of the time

Microsoft Defender for Business vs Microsoft Defender for Office 365

Compared 4% of the time

More Microsoft Defender for Office 365 Competitors

Proofpoint Email Protection vs Microsoft Exchange Online Protection (EOP)

Compared 12% of the time

Cisco Secure Email vs Microsoft Exchange Online Protection (EOP)

Compared 11% of the time

Fortinet FortiMail vs Microsoft Exchange Online Protection (EOP)

Compared 10% of the time

Mimecast Email Security vs Microsoft Exchange Online Protection (EOP)

Compared 7% of the time

Darktrace vs Microsoft Exchange Online Protection (EOP)

Compared 4% of the time

More Microsoft Exchange Online Protection (EOP) Competitors

Trend Micro Email Security vs Trend Micro InterScan Messaging Security

Compared 49% of the time

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

Compared 37% of the time

More Trend Micro InterScan Messaging Security Competitors

Product Reports

Buyer's Guide

Microsoft Defender for Office 365

May 2025

Microsoft Defender for Office 365 report

Download Microsoft Defender for Office 365 product report

Buyer's Guide

Microsoft Exchange Online Protection (EOP)

May 2025

Microsoft Exchange Online Protection (EOP) report

Download Microsoft Exchange Online Protection (EOP) product report

Buyer's Guide

Email Security

May 2025

Trend Micro InterScan Messaging Security report

Download Trend Micro InterScan Messaging Security product report

Also Known As

MS Defender for Office 365

Microsoft EOP, MS Exchange Online Protection

InterScan Messaging Security

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

Microsoft Exchange Online Protection (EOP) is a comprehensive email filtering and security service designed to protect organizations from spam, malware, and other email-based threats. It provides advanced threat protection, anti-malware and anti-spam filtering, and data loss prevention capabilities.

With EOP, organizations can ensure the security and integrity of their email communications. It uses multiple layers of filtering and scanning to detect and block malicious content, including phishing attempts, viruses, and ransomware. EOP also leverages machine learning and artificial intelligence to continuously improve its threat detection capabilities.

In addition to its robust security features, EOP offers advanced anti-spam filtering to reduce unwanted and unsolicited emails. It uses a combination of reputation-based filtering, content filtering, and sender authentication techniques to identify and block spam messages.

EOP also includes data loss prevention (DLP) capabilities to prevent sensitive information from being leaked or shared inappropriately. It allows organizations to define policies to detect and prevent the transmission of sensitive data, such as credit card numbers or social security numbers, via email.

Furthermore, EOP integrates seamlessly with Microsoft Exchange Online and other Office 365 services, providing a unified and integrated email security solution. It can be easily managed through the Exchange admin center, allowing administrators to configure and monitor security settings, review reports, and manage quarantined emails.

Microsoft

Trend MicroTM InterScan™ Messaging Security provides the most comprehensive protection against both traditional and targeted attacks. Using the correlated intelligence from Trend Micro™ Smart Protection Network™ and optional sandbox execution analysis, it blocks spam, phishing, and advanced persistent threats (APTs). The included hybrid SaaS deployment option combines a powerful gateway virtual appliance with a SaaS pre- lter that stops majority of threats and spam in the cloud—closer to their source. This hybrid solution delivers the best of both worlds: the privacy and control of an on-premises appliance with an in-the-cloud pre- lter for resource ef ciency and proactive protection.

Trend Micro

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.

Information Not Available

Copa Airlines, Air21, BookMyShow, Bulgarian American Credit Bank, Canadian Museum of History, CIBIL, Community National Bank, Dar Al-Handasah

Buyer's Guide

Microsoft Exchange Online Protection (EOP) vs. Trend Micro InterScan Messaging Security

April 2025

Free Report: Microsoft Exchange Online Protection (EOP) vs. Trend Micro InterScan Messaging Security

Find out what your peers are saying about Microsoft Exchange Online Protection (EOP) vs. Trend Micro InterScan Messaging Security and other solutions. Updated: April 2025.

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