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Trend Micro Deep Discovery Email Inspector vs Varonis Platform comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 7, 2025

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

Trend Micro Deep Discovery ...
Ranking in Email Security
23rd
Average Rating
7.8
Reviews Sentiment
7.1
Number of Reviews
8
Ranking in other categories
No ranking in other categories
Varonis Platform
Ranking in Email Security
20th
Average Rating
8.2
Reviews Sentiment
6.4
Number of Reviews
14
Ranking in other categories
Data Loss Prevention (DLP) (9th), User Entity Behavior Analytics (UEBA) (7th), Data Governance (4th), SaaS Security Posture Management (SSPM) (5th), Data Security Posture Management (DSPM) (3rd), Compliance Management (7th), Ransomware Protection (10th), Identity Threat Detection and Response (ITDR) (7th), Insider Risk Management (1st)
 

Mindshare comparison

As of October 2025, in the Email Security category, the mindshare of Trend Micro Deep Discovery Email Inspector is 0.5%, up from 0.2% compared to the previous year. The mindshare of Varonis Platform is 0.3%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Varonis Platform0.3%
Trend Micro Deep Discovery Email Inspector0.5%
Other99.2%
Email Security
 

Featured Reviews

Bilal Saleem - PeerSpot reviewer
Reliability and threat intelligence make this solution competitive, but AI improvements can further enhance its effectiveness
The best features of Trend Micro Deep Discovery Email Inspector include its reliability. The second valuable feature is its built-in sandbox feature, allowing for inspection of incoming emails and attachments. The sandbox is an appliance that opens any attachment in an enclosed environment to assess its impact and potential for viruses. This protects the network from harmful threats. Trend Micro has a very large R&D team with excellent threat intel, allowing them to provide better solutions than some competitors. They understand emerging threats based on the information from their EDR. The key strengths can be summarized as reliability, a good integrated one-box solution that includes a sandbox, and their R&D capabilities and good ratings, which lead to better threat intelligence. The detailed threat intelligence provided by Trend Micro Deep Discovery Email Inspector is valuable in understanding the behavior and tactics of potential email threats.
Frederic  Delos - PeerSpot reviewer
Offers the ability to identify sensitive areas, allowing you to drill down into the sensitive data
The most effective feature for me is its ability to identify sensitive areas, allowing you to drill down into the sensitive data, provided you have access, to determine whether it's a false positive or a true positive. That's the best thing for me, out of all of it. It's got everything, like other ones, but I like to be able to look at something if I'm doing forensics on the alert and say, "Okay, do I really need to do something with this?" For example, we don't want sensitive data in our OneDrive. So it identifies the sensitive data that's possibly in the OneDrive. And what I can do is look at it and identify whether it's actually sensitive data in Datalert or whether it looks like sensitive data, but I know it's a false positive. If it is a false positive, I can basically say ignore this pattern based on X, Y, and Z, you know, whether it's Redjax or keyword proximity. So I like that. With other tools, I gotta go through a whole process because it's a little bit more complex. Here, I can tag it and bag it in one shot. And the next good time I scan, it slips over it. So it helps in that.

Quotes from Members

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

Pros

"I like that it is very user-friendly and easy to install."
"Trend Micro is a very good product."
"The best features of Trend Micro Deep Discovery Email Inspector include its reliability."
"The solution's most valuable features include visibility into the network and fast sandboxing technology for alerts, though response time can vary."
"The most valuable feature of Trend Micro Deep Discovery Email Inspector is the simple analysis of phishing emails."
"It can effectively monitor outbound and inbound devices."
"I highly recommend Trend Micro Deep Discovery Email Inspector due to its security and scalability features."
"I would rate the solution's stability at ten out of ten."
"Varonis Platform is transparent and captures everything in the environment without impacting the performance. The tool helps us unify data feeds into a single reporting system."
"The analytics would have to be our most valuable feature."
"The solution ensures that users have not accidentally shared sensitive information with the wrong people or too many people."
"Varonis offers robust data access governance, allowing us to understand which sensitive data exists and who has access to it."
"The most important feature is remediation. In remediation support, there is no group permission. We'll go ahead and remediate the access from the Dell folder to the parent folder."
"On the Varonis side, technical support is phenomenal. Their ability to explain is very good, and they seem to be very knowledgeable. When I get an alert that doesn't quite make sense, they dive in there and kind of take me through it. That's very useful and very good. There are some false alerts, but it is better to have a false alert than no alert at all."
"The solution has significantly improved data security and compliance posture by allowing us to track and monitor activities. We can see who accesses data and when files are created and understand what's happening in our environment."
"Technical support from Varonis is rated as nine out of ten."
 

Cons

"Trend Micro's technical support has room for improvement."
"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)."
"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. More efficient support should be provided, especially for standard support."
"To improve Trend Micro Deep Discovery Email Inspector, it should have updates with better AI and ML-based integration."
"The product's feature for message processing and blocking devices for bulk emails needs 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."
"The solution's areas of improvement are the interface and the dependency on on-premises deployment for some components."
"For unstructured data monitoring, it's one of the top ones, if not the top one, due to its usability."
"One area for improvement is the calculation engine. When applying rules in Varonis, especially for large datasets (terabytes of data), the calculations can be slow and require time to process. Speeding up this process would be beneficial."
"I'd like to see automatic updates for this solution. Currently, it's a manual process to update all the keywords"
"Varonis requires more access permissions for its core functions compared to competitors, which can be a concern for companies about data safety."
"The GUI should be more functional. There should be a process for connecting through Chrome, Internet Explorer, etc."
"There is one thing that if I add something manually, I get so many alerts. That's the biggest bad thing."
"It is significantly complex."
 

Pricing and Cost Advice

"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."
"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."
"Licensing is on an annual basis. Maintenance and renewal fees are separate. Varonis Datalert is quite expensive."
"The platform is expensive. I rate the pricing a nine out of ten."
"I would rate the pricing an eight out of ten, with ten being the most expensive."
"The pricing is good. It neither expensive nor cheap. It is average."
"You could do a subscription, where you pay yearly, or you could purchase it outright. The licensing cost is based on the number of users on the system that you are monitoring."
"Varonis Platform wasn't certainly the cheapest solution."
"It's expensive, kind of, really expensive."
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Top Industries

By visitors reading reviews
Performing Arts
13%
Computer Software Company
11%
Financial Services Firm
9%
Outsourcing Company
8%
Financial Services Firm
15%
Manufacturing Company
9%
Computer Software Company
9%
Insurance Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
Large Enterprise1
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise1
Large Enterprise11
 

Questions from the Community

What is your experience regarding pricing and costs for Trend Micro Deep Discovery Email Inspector?
On the pricing side, Trend Micro Deep Discovery Email Inspector is not the cheapest, but it's not the highest either. Its prices are around 80%, which is lesser than some vendors but higher than most.
What needs improvement with Trend Micro Deep Discovery Email Inspector?
To improve Trend Micro Deep Discovery Email Inspector, it should have updates with better AI and ML-based integration. While it has some capabilities in this area, focusing more on this aspect coul...
What is your primary use case for Trend Micro Deep Discovery Email Inspector?
The main use case for using Trend Micro Deep Discovery Email Inspector is for the anti-spam solution. Different enterprises get spam emails from multiple sources, so the use case for customers is t...
What do you like most about Varonis Platform?
The solution has significantly improved data security and compliance posture by allowing us to track and monitor activities. We can see who accesses data and when files are created and understand w...
What needs improvement with Varonis Platform?
Varonis started as an on-premises solution and is transitioning to cloud. It hasn't fully moved yet, which is an area for improvement. Varonis requires more access permissions for its core function...
What is your primary use case for Varonis Platform?
The primary use case for Varonis Platform is data discovery, specifically for discovering sensitive data in our organization to protect it. We are looking for a solution that can scan our repositor...
 

Also Known As

Deep Discovery Email Inspector
SlashNext Complete
 

Overview

 

Sample Customers

Bank Saint Petersburg, CEITEC S.A., Dar Al-Handasah, Mitsubishi Electric Information Systems, Motilal Oswal Financial Services Ltd, OKWAVE, Oman Arab Bank, VakifBank
Nottingham Building Society
Find out what your peers are saying about Trend Micro Deep Discovery Email Inspector vs. Varonis Platform and other solutions. Updated: October 2025.
869,513 professionals have used our research since 2012.