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

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

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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 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 Microsoft Exchange Online Protection (EOP) is 6.8%, down from 9.4% 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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Nur Mohammad

Deputy Manager at B-Trac Technologies Ltd.

An effective email security solution that provides DLP, Safe Attachment, and Safe Links

If you want extensive email security, you need to purchase a Plan 2 license. Plan 1 and Plan 2 are the two plans for Microsoft Exchange Online Protection. Some customers hesitate to purchase this product because it adds some costs to them, which is necessary for them. It would be helpful for customers if Plan 1 features were included with EOP. However, they still need to purchase Plan 2 for advanced security features. One of our clients recently requested to compare Zimbra's features with Microsoft Exchange Online Protection. Zimbra is open source, while Microsoft Exchange Online Protection is not. When I compare both the products, many free features are available in Zimbra because it is open-source software. It makes no sense to request Microsoft Exchange Online Protection add all the features people get on open-source software like Zimbra. Hence, I would say whatever features Microsoft Exchange Online Protection has are enough. Microsoft has a dedicated research team that should research and add new techniques like phishing and spamming solutions to the product.

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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

"The initial setup is straightforward. You just add the license, click it, and then you can set up the rules. It is quite simple."

"Since we have started using the solution, there have been fewer compromises."

"The deployment capability is a great feature."

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

"The product's scalability is good."

"The basic features are okay and I'm satisfied with the Defender."

"There are several features that I consider valuable."

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

More Microsoft Defender for Office 365 pros

"Microsoft Exchange Online Protection (EOP) is the best email solution with more features and robust security, making it ideal for corporate use."

"In general, my company is happy with Microsoft support...My company hasn't faced any stability issues with the solution."

"The product protects against malware."

"It is an easy solution."

"It provides security to both on-premises and Azure infrastructures."

"The email policy configuration options in Microsoft EOP are satisfactory."

"The initial setup of Microsoft Exchange Online Protection was easy."

"The product's most valuable feature is third-party integrations."

More Microsoft Exchange Online Protection (EOP) pros

"The technical support services are excellent."

"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."

Cons

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

"This product's effectiveness could be improved, in terms of detecting unwanted spam or even malware between the emails, compared to other products."

"Microsoft Defender for Office 365 should be more proactive."

"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."

"They can improve their security in a way where a customer can know if all their attachments are safe or not to open through a report. The solution does its job perfectly, but it never reports to the customer whether those attachments have been stopped before or not."

"The phishing and spam filters could use some improvement."

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

"In one of the reports I can get the exact place where a vulnerable file resides. But for that, I need to explicitly go into the device and check. If they could include that file part in the report, without my having to go to the device itself, that would help."

More Microsoft Defender for Office 365 cons

"The product's end-of-life cycle could be extended."

"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."

"Microsoft 365 Defender and EOP policies are stable with the proper license. However, with the basic policy, it's hard to say it's stable due to configuration limitations."

"Some of the searchability when looking for specifics in Exchange logs is tedious."

"The reporting needs a little bit of improvement."

"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."

"The tool's classification for bulk email is cumbersome."

More Microsoft Exchange Online Protection (EOP) cons

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

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

"The solution's pricing could be improved."

Pricing and Cost Advice

"The product is 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."

"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."

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

"It's a user-base subscription."

"Microsoft Defender is expensive. I typically recommend it only if clients have the budget. Otherwise, I would suggest an alternative."

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

"The pricing has become expensive."

More Microsoft Defender for Office 365 pricing and cost advice

"The pricing of the solution is reasonable."

"The product is bundled with Microsoft 365."

"Regarding the price, it's comparable to other service providers. We've also looked at Check Point's offerings, and the pricing doesn't seem to be an issue."

"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 of Microsoft Exchange Online Protection is reasonable."

"The solution falls on the higher or more expensive side of the spectrum."

"It is a low-price solution."

"The price could be lower."

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%

Government

Financial Services Firm

Manufacturing Company

Computer Software Company

12%

Financial Services Firm

11%

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...

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.

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.

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?

Some of the searchability when looking for specifics in Exchange logs is tedious. Although eventually the information...

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

I use the tools to protect customers' emails, mostly utilizing Defender products to protect emails and links from Sha...

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

The technical support services are excellent.

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...

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...

Proofpoint Email Protection vs Microsoft Defender for Office 365

Comparisons

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Mimecast Email Security vs Microsoft Defender for Office 365

Compared 5% of the time

Trend Micro Email Security vs Microsoft Defender for Office 365

Compared 4% of the time

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Proofpoint Email Protection vs Microsoft Exchange Online Protection (EOP)

Compared 13% 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 9% of the time

Mimecast Email Security vs Microsoft Exchange Online Protection (EOP)

Compared 6% of the time

Symantec Messaging Gateway 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 50% of the time

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

Compared 36% of the time

More Trend Micro InterScan Messaging Security Competitors

Product Reports

Microsoft Defender for Office 365

Download Microsoft Defender for Office 365 product report

Microsoft Defender for Office 365 report

Microsoft Exchange Online Protection (EOP)

Download Microsoft Exchange Online Protection (EOP) product report

Microsoft Exchange Online Protection (EOP) report

Email Security

Download Trend Micro InterScan Messaging Security product report

Trend Micro InterScan Messaging Security 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

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