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AppRiver Email Security 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...
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Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
52
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (1st), Microsoft Security Suite (11th), Secure Email Gateway (SEG) (1st)
AppRiver Email Security
Ranking in Email Security
24th
Average Rating
9.0
Reviews Sentiment
6.6
Number of Reviews
2
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 AppRiver Email Security is 0.9%, down from 1.1% 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.
John Zupancic - PeerSpot reviewer
Pricing that is competitive, excellent technical support, and email security
They do a better job of distinguishing between what's real and what's not than most of the other solutions we've tried. They are very easy to use. We don't have as many problems with email security. They have some areas that could be improved. For example, we also use Zix email Encryption for email encryption, which was clunky and could be improved, but the email security itself has been excellent.
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 technical support is good and quick to resolve issues."
"We use Microsoft Defender for its ability to integrate with existing business technologies, which is beneficial for protecting business areas."
"Microsoft Defender for Office 365 facilitates efficient management and updates through the cloud. We do not have to worry about incompatibilities. It just works."
"The product's scalability is good."
"The good part is that you don't have to configure it, which is very convenient."
"The risk level notifications are most valuable. We get to know what kind of intrusion or attack is there, and we can fix a problem on time."
"The ability to respond to threats if very important."
"My experience with customer support and technical support for Microsoft Defender for Office 365 has been excellent."
"They are very easy to use."
"It's easy to use and user-friendly. Users can also easily release spam emails."
"Trend Micro Email Security’s most valuable feature is spam filtering."
"The solution's most valuable feature is ATP (Advanced Threat Protection), which utilizes the machine learning algorithm."
"The most valuable features of the solution are spam protection and email continuity."
"The email and the signature based protection is the most valuable feature."
"Trend Micro has inter-domain security features that solutions from other vendors like Forcepoint lack."
"The tool provides a strong defense against attacks. It is also easy to use. Trend Micro Email Security's integration capabilities are great."
"Trend Micro Email Security has a feature for secure protection of OneDrive, Google Drive, and CloudApp security."
"The initial setup is not overly complex."
 

Cons

"This product's effectiveness could be improved, in terms of detecting unwanted spam or even malware between the emails, compared to other products."
"In the areas of improvement for Microsoft Defender for Office 365, the console is the biggest challenge for me."
"There is room for improvement in terms of reporting."
"Several simulation options are available within 365, and the phishing simulation could be better."
"The visibility into threats is not up to the mark, as I do not have control. I rate my experience with Microsoft Defender for Office 365 as six out of ten due to troubleshooting and pricing concerns."
"Microsoft should provide more documentation for users so they can self-educate. I would like to see more documentation for advanced security features."
"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."
"I'd like some additional features any product can give me to protect our environment in a better way."
"Email security checks contain a small number of false positives."
"It needs to make sure that the application is up to date with new attacks. They should also send us the demo or introductions for their new incoming features."
"I rate Trend Micro support four out of 10. The support in our region isn't very good. They do not respond quickly when we open up a case."
"While they are good, not 100% of email is protected just yet."
"The only negative thing about Trend Micro Email Security is its price. It could be less expensive."
"The tool's dashboard is old."
"Trend Micro Email Security can improve on scam detection. It could use AI in this area."
"It is a bit expensive than the market price."
"There is a limitation when customers are using their email from a third-party solution that isn't from Trend Micro."
"The company also needs to work on pricing because it is quite costly compared to other products."
 

Pricing and Cost Advice

"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."
"The license is expensive because the cost is based on the number of users."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"The product is expensive."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
"The pricing is normal. Considering its popularity, it's not overpriced."
"The solution could be better by simplifying the business model of their licensing. It was hard to figure out how to get the licensing done for the environment, initially."
"It's a user-base subscription."
"They're fairly inexpensive, but they're right in the ballpark of most of the other online products like that."
"I can rate it five out of ten because there are different platforms that also offer the same services for lower prices. But AppRiver is more flexible."
"It is expensive. The cost is per box, and it depends on how big your environment is. Prices range from 11 to 12 dollars for licenses and can fluctuate up and down, but for environments with 4,000 to 5,000 users, it can be between 6 to 8 dollars."
"The price of Trend Micro Email Security is annual. There are no additional fees."
"It's a VPN solution. Trend Micro is reasonably priced."
"The cost is about $6,000 for 300 users for one year."
"The solution is inexpensive so we recommend it to small to mid-sized businesses."
"Trend Micro Email Security is not an expensive solution."
"The price is more accessible compared to some other solutions, like FortiMail. It offers excellent value for the price."
"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
8%
Manufacturing Company
8%
Government
6%
Computer Software Company
14%
Construction Company
7%
Manufacturing Company
7%
Financial Services 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
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?
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 do you like most about AppRiver Email Security?
It's easy to use and user-friendly. Users can also easily release spam emails.
What is your experience regarding pricing and costs for AppRiver Email Security?
I can rate it five out of ten because there are different platforms that also offer the same services for lower price...
What needs improvement with AppRiver Email Security?
It needs to make sure that the application is up to date with new attacks. They should also send us the demo or intro...
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
AppRiver Advanced Email Security
No data available
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
IHMC
MedImpact Healthcare Systems, Air21, Azra Solutions, CBOSS, De Montfort University, Depaeuw, DHR Health, Fukui University Hospital
Find out what your peers are saying about AppRiver Email Security vs. Trend Micro Email Security and other solutions. Updated: April 2025.
850,236 professionals have used our research since 2012.