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SonicWall Email Security vs Trend Micro Deep Discovery Email Inspector comparison

 

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

SonicWall Email Security
Ranking in Email Security
36th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
13
Ranking in other categories
No ranking in other categories
Trend Micro Deep Discovery ...
Ranking in Email Security
20th
Average Rating
7.8
Reviews Sentiment
7.1
Number of Reviews
8
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Email Security category, the mindshare of SonicWall Email Security is 0.5%, down from 0.6% compared to the previous year. The mindshare of Trend Micro Deep Discovery Email Inspector is 0.5%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security
 

Featured Reviews

Constantnos Achilleos - PeerSpot reviewer
Provides strong email filtering and threat intelligence but pricing needs improvement
I work with SonicWall Email Security SonicWall Email Security uses multi-layer cloud security. It filters emails before they come to my provider, such as Office 365. It has real-time threat intelligence and provides strong data loss prevention. Additionally, it filters emails before they reach my…
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.

Quotes from Members

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

Pros

"The anti-spam aspect of the solution is its most valuable feature."
"It is a very scalable solution."
"The most valuable features are the anti-spam, anti-phishing, anti-virus, and anti-spoofing."
"The most valuable feature of SonicWall Email Security is the blocking of emails using keywords. If there are any particular keywords in the subject, that we want to block from receiving from a particular person we can do it. Additionally, the blocking of emails is easy. we can release that one and we can block some of the keywords also like that."
"This solution provides very good email security that protects us against spamming and malware."
"According to our customers, the product's most valuable feature is the ability to detect spam and reduce phishing emails."
"SonicWall Email Security uses multi-layer cloud security."
"There are no wasted extras and the interface is really simple."
"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."
"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."
"I like that it is very user-friendly and easy to install."
 

Cons

"The protection level for email security isn't 100%. I'm still getting some spam and junk mail."
"They need well-trained partners in Nigeria."
"There could be definition updates included in the subscription."
"A lot of spoofed emails are still coming to the end-user, so the configuration for this option needs to be improved."
"The pricing could be improved."
"They should integrate the solution with third-party platforms."
"We would like to see more information on a dashboard about what is happening when it comes to spamming and malware."
"The platform's control panel needs enhancement."
"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."
"Trend Micro's technical support has room for improvement."
"The product's feature for message processing and blocking devices for bulk emails needs improvement."
"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."
"The dashboard could be improved to match the quality of Check Point Harmony's dashboard."
"Trend Micro Deep Discovery Email Inspector could improve by making it easier to use. Microsoft solutions are easier to use."
"To improve Trend Micro Deep Discovery Email Inspector, it should have updates with better AI and ML-based integration."
 

Pricing and Cost Advice

"I rate the application’s pricing a five out of ten."
"The overall price of SonicWall Email Security should be reduced and there should be an option to purchase one or two licenses more instead of their current policy of bulk increases only. There should be more flexibility in the licensing model. Each license cost approximately $33 annually."
"When compared with Cisco, it is very well priced. Cisco is very expensive."
"The platform offers a yearly license."
"Our customers purchase the solution's yearly license."
"The cost is cheaper than Sophos. I would rate it as five out of ten."
"We have a two-year license subscription and the price is very high."
"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."
"The price of Trend Micro Deep Discovery Email Inspector is less expensive than Microsoft solutions."
"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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Top Industries

By visitors reading reviews
Computer Software Company
12%
Manufacturing Company
12%
Educational Organization
10%
Construction Company
9%
Computer Software Company
12%
Performing Arts
12%
Financial Services Firm
10%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about SonicWall Email Security?
According to our customers, the product's most valuable feature is the ability to detect spam and reduce phishing emails.
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...
 

Also Known As

Dell SonicWALL Email Security Platform, SonicWall Hosted Email Security
Deep Discovery Email Inspector
 

Overview

 

Sample Customers

Star Kay White, Locala Community Partnerships
Bank Saint Petersburg, CEITEC S.A., Dar Al-Handasah, Mitsubishi Electric Information Systems, Motilal Oswal Financial Services Ltd, OKWAVE, Oman Arab Bank, VakifBank
Find out what your peers are saying about SonicWall Email Security vs. Trend Micro Deep Discovery Email Inspector and other solutions. Updated: July 2025.
865,384 professionals have used our research since 2012.