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SonicWall Email Security vs Trend Micro Deep Discovery Email Inspector comparison

SonicWall and Trend Micro are both solutions in the Email Security category. SonicWall is ranked #30 with an average rating of 7.7, while Trend Micro is ranked #23 with an average rating of 8.7. SonicWall holds a 0.6% mindshare in Email Security, compared to Trend Micro’s 0.5% mindshare. Additionally, 88% of SonicWall users are willing to recommend the solution, compared to 100% of Trend Micro users who would recommend it.
SonicWall Email Security
Read 15 SonicWall Email Security reviews
  • 662 Views
  • 576 Comparison Views
88% willing to recommend
Trend Micro Deep Discovery ...
Read 8 Trend Micro Deep Discovery Email Inspector reviews
  • 1,340 Views
  • 911 Comparison Views
100% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 3, 2024

SonicWall Email Security and Trend Micro Deep Discovery Email Inspector are competing in the email security solutions category. SonicWall is advantageous in pricing and customer support, while Trend Micro offers superior security features.

Features: SonicWall Email Security provides anti-spam capability, phishing protection, and policy management. Trend Micro Deep Discovery Email Inspector excels in advanced threat detection, zero-day threat protection, and file analysis.

Room for Improvement:SonicWall could enhance blockage of attachments by extension type, improve firewall macro blocking, and expand spam filtering capabilities. Trend Micro's deployment complexity may slow access, could benefit from faster response times, and reduced time to onboard users.

Ease of Deployment and Customer Service: SonicWall is easy to deploy with strong customer service. Trend Micro requires intricate deployment due to advanced security features but has commendable support.

Pricing and ROI: SonicWall is cost-effective with favorable ROI. Trend Micro has higher setup costs but delivers significant ROI through advanced threat detection.

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To learn more, read our detailed SonicWall Email Security vs. Trend Micro Deep Discovery Email Inspector Report (Updated: December 2025).
Buyer's Guide
SonicWall Email Security vs. Trend Micro Deep Discovery Email Inspector
December 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

SonicWall Email Security
Ranking in Email Security
30th
Average Rating
7.8
Reviews Sentiment
6.6
Number of Reviews
15
Ranking in other categories
No ranking in other categories
Trend Micro Deep Discovery ...
Ranking in Email Security
23rd
Average Rating
8.0
Reviews Sentiment
7.1
Number of Reviews
8
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Email Security category, the mindshare of SonicWall Email Security is 0.6%, up from 0.5% compared to the previous year. The mindshare of Trend Micro Deep Discovery Email Inspector is 0.5%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Trend Micro Deep Discovery Email Inspector0.5%
SonicWall Email Security0.6%
Other98.9%
Email Security
 

Featured Reviews

Swapnil Kulkarni - PeerSpot reviewer
Swapnil Kulkarni
System Administrator at Ador Powertron Ltd.
Has consistently supported security needs for mid-sized teams with affordable deployment
I do not work with Cloud Secure Edge, CSE, or SMA apart from SonicWall NSA. I am not satisfied with phishing protection, as it falls completely under the email domain security. The customizable policy configuration does not help to tailor email security overall because our systems are not integrated with SonicWall Email Security. We are not using reporting and analytics because it requires completely different software. While all required features are available in SonicWall Email Security for SMBs and startups, we lack analytics features. They provide an option to purchase a complete separate product for analytics, but despite initially having purchased the paper license, due to technical limitations or changes, we cannot use that product. Now they require additional fees to access the analytics feature.
Read full review
Bilal Saleem - PeerSpot reviewer
Bilal Saleem
Manager Pre Sales NI at Nera Philippines Inc.
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.
Read full review

Quotes from Members

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

Pros

"The pricing for SonicWall Email Security is reasonable and budget-friendly."
"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."
"We always get ROI from the product we are using; it is completely flexible and acceptable according to our security requirements over the last four years and currently."
"The most valuable feature is that it protects from spam."
"The most valuable features are the anti-spam, anti-phishing, anti-virus, and anti-spoofing."
"It is a very scalable solution."
"The anti-spam aspect of the solution is its most valuable feature."
More SonicWall Email Security pros
"The best features of Trend Micro Deep Discovery Email Inspector include its reliability."
"I find Trend Micro to be a good solution for security purposes."
"I highly recommend Trend Micro Deep Discovery Email Inspector due to its security and scalability features."
"It can effectively monitor outbound and inbound devices."
"The solution's most valuable features include visibility into the network and fast sandboxing technology for alerts, though response time can vary."
"I like that it is very user-friendly and easy to install."
"Trend Micro is a very good product."
"The most valuable feature of Trend Micro Deep Discovery Email Inspector is the simple analysis of phishing emails."
More Trend Micro Deep Discovery Email Inspector pros
 

Cons

"Updates could be released more frequently."
"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."
"There could be definition updates included in the subscription."
"SonicWall Email Security could improve by making the file blocking and the release feature easier to use"
"We would like to see more information on a dashboard about what is happening when it comes to spamming and malware."
"I am not satisfied with phishing protection, as it falls completely under the email domain security."
"They need well-trained partners in Nigeria."
More SonicWall Email Security cons
"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."
"The product's feature for message processing and blocking devices for bulk emails needs improvement."
"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)."
"To improve Trend Micro Deep Discovery Email Inspector, it should have updates with better AI and ML-based integration."
"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 dashboard could be improved to match the quality of Check Point Harmony's dashboard."
"Trend Micro's technical support has room for improvement. More efficient support should be provided, especially for standard support."
More Trend Micro Deep Discovery Email Inspector cons
 

Pricing and Cost Advice

"The cost is cheaper than Sophos. I would rate it as five out of ten."
"I rate the application’s pricing a five out of ten."
"The platform offers a yearly license."
"We have a two-year license subscription and the price is very high."
"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."
"Our customers purchase the solution's yearly license."
"When compared with Cisco, it is very well priced. Cisco is very expensive."
"The solution's pricing is high, and I would rate it an eight out of ten."
"We pay for an annual subscription for this email security solution."
"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."
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise3
Large Enterprise3
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
Large Enterprise1
 

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.
See all answers
What is your experience regarding pricing and costs for SonicWall Email Security?
The solution is affordable.
See all answers
What needs improvement with SonicWall Email Security?
Policy deployment could be time consuming and represents an area for improvement in SonicWall Email Security.
See all answers
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.
See all answers
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...
See all answers
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...
See all answers
 

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Barracuda Email Security Gateway vs SonicWall Email Security Logo
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Check Point Harmony Email & Collaboration vs SonicWall Email Security Logo
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Compared 12% of the time
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Compared 50% of the time
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Microsoft Exchange Online Protection (EOP) vs Trend Micro Deep Discovery Email Inspector Logo
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Product Reports

Buyer's Guide
SonicWall Email Security
January 2026
SonicWall Email Security reportDownload SonicWall Email Security product report
Buyer's Guide
Email Security
January 2026
Trend Micro Deep Discovery Email Inspector reportDownload Trend Micro Deep Discovery Email Inspector product report
 

Also Known As

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

Overview

SonicWALL Email Security Platform offers powerful protection to keep email threats out. And sensitive data in. With innovative protection techniques for both inbound and outbound email plus unique management tools, the Email Security platform delivers superior email protection today while standing ready to stop the new attacks of tomorrow.
SonicWall

Stop spear phishing attacks and targeted ransomware

Trend Micro
 

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
Buyer's Guide
SonicWall Email Security vs. Trend Micro Deep Discovery Email Inspector
December 2025
Free Report: SonicWall Email Security vs. Trend Micro Deep Discovery Email Inspector
Find out what your peers are saying about SonicWall Email Security vs. Trend Micro Deep Discovery Email Inspector and other solutions. Updated: December 2025.
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We monitor all Email Security reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.