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Cisco Secure Email Threat Defense vs SonicWall Email Security 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

Cisco Secure Email Threat D...
Ranking in Email Security
25th
Average Rating
8.0
Reviews Sentiment
7.1
Number of Reviews
14
Ranking in other categories
No ranking in other categories
SonicWall Email Security
Ranking in Email Security
35th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Email Security category, the mindshare of Cisco Secure Email Threat Defense is 1.1%, up from 1.0% compared to the previous year. The mindshare of SonicWall Email Security is 0.5%, down from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security
 

Featured Reviews

Enrique-Diaz Jolly - PeerSpot reviewer
Provides comprehensive threat protection with suggestions for modernizing controls
I use the email gateway as the core of the email exchange between the Internet and our domain. The email gateway serves as the email exchanger The product offers protection, email security, anti-spam, and antivirus. It includes threat intelligence with advanced malware protection and many…
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…

Quotes from Members

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

Pros

"The product offers protection, email security, anti-spam, and antivirus."
"I highly recommend it as one of the best choices."
"It has an efficient email filtering feature."
"On ease of use, it rates very high. It's something that I was able to get into without really looking at any documentation. I wanted to see what it felt like before I started looking at any documentation on how to use it, and it was very easy to use. It works very smoothly. The user experience is very intuitive. They did an amazing job on that."
"I would say it's very comprehensive, with multiple antivirus OEMs, virus encrypt features, encryption, and more."
"Secure Email Threat Defense's scalability is good."
"The ability to see east-west traffic is its most valuable feature. Traditionally, email defense focuses on north-south, inbound-outbound, egress-ingress traffic. With Cisco Secure Email Cloud Mailbox, it's able to quickly identify, track, tag, and categorize emails that are internal. That can typically give us visibility into if there's an internal compromised account (for example). Someone can then use that internal compromised account to email additional accounts with either malicious software or links, but internal within that Office tenant. Effectively, that email message never leaves the tenant. Any of the mail gateways really do not have any method or way of seeing this traffic since it's not leaving the environment."
"The solution is stable."
"The anti-spam aspect of the solution is its most valuable feature."
"Beside a few issues with specificity in the email protection controls, this product is very good at handling email security."
"There are no wasted extras and the interface is really simple."
"According to our customers, the product's most valuable feature is the ability to detect spam and reduce phishing emails."
"This solution provides very good email security that protects us against spamming and malware."
"The most valuable feature is that it protects from spam."
"The product is easy to manage in terms of configurations."
"The most valuable features are the anti-spam, anti-phishing, anti-virus, and anti-spoofing."
 

Cons

"The pricing could always be better."
"The search area has room for improvement. When you go to the next page, it remains at the bottom of the current page that you're on. Also, under the reports section, it allows you to see any "convictions," but if you want to search for those convictions you have to remember when they all came in and go back and edit the search accordingly. You cannot click on the list of convictions to actually see if you had a spike at a certain time."
"There is still room for improvement in terms of integrations with other Cisco tools and non-Cisco tools. There is also some room for improvement needed in terms of the reporting."
"This solution could be improved by integration with Sandbox."
"Cisco's multiple product lines and verticals made this just one of their many verticals, and we could see a shift in focus."
"The tool gives false positives and it needs to be more accurate. I would like to see AI as a new feature."
"Customers will benefit greatly from monthly billing because the majority of customers today use the cloud, be it Office 365, or Google Cloud."
"The behavioral analysis capability of Cisco Secure Email Threat Defense is not particularly helpful for identifying new, evolving threats within my company, as it keeps flagging legitimate emails as malicious."
"There could be definition updates included in the subscription."
"They should integrate the solution with third-party platforms."
"The protection level for email security isn't 100%. I'm still getting some spam and junk mail."
"The pricing could be improved."
"They need well-trained partners in Nigeria."
"The technical support from the company is not always very good at solving issues, but they offer access to a good community of users where problems are easily solved."
"The reporting needs improvement."
"We would like to see more information on a dashboard about what is happening when it comes to spamming and malware."
 

Pricing and Cost Advice

"Cisco Secure Email Cloud Mailbox does not have any competition with Sophos, Trend Micro, or other vendors of the world. However, there is a pricing premium for the solution. One has to look at it from that angle that while they are buying Cisco, there will be a premium, and Cisco justifies that premium value. That's why they're charging a high price."
"The solution’s pricing is manageable."
"It is expensive compared to other vendors."
"The feedback from vendors and customer is that it is expensive."
"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."
"Our customers purchase the solution's yearly license."
"The cost is cheaper than Sophos. I would rate it as five out of ten."
"The platform offers a yearly license."
"We have a two-year license subscription and the price is very high."
"I rate the application’s pricing a five out of ten."
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Top Industries

By visitors reading reviews
Computer Software Company
27%
Healthcare Company
8%
Government
6%
Manufacturing Company
5%
Computer Software Company
14%
Manufacturing Company
10%
Financial Services Firm
9%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Secure Email Threat Defense?
Secure Email Threat Defense's scalability is good.
What is your experience regarding pricing and costs for Secure Email Threat Defense?
Cisco's closest competition is Proofpoint. Both are in the same range in terms of pricing. Pricing is on the higher side. That said, you get what you pay for.
What needs improvement with Secure Email Threat Defense?
The integration capability with other threat intelligence platforms is not optimal, as I have experienced difficulty in sending logs to our SIEM. Cisco Secure Email Threat Defense's flexibility cou...
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.
 

Also Known As

Cisco Secure Email Cloud Mailbox, Cisco CMD, Cisco Cloud Mailbox Defense
Dell SonicWALL Email Security Platform, SonicWall Hosted Email Security
 

Overview

 

Sample Customers

Luiss University, Lone Star College, T-Systems, Magyar Telekom
Star Kay White, Locala Community Partnerships
Find out what your peers are saying about Cisco Secure Email Threat Defense vs. SonicWall Email Security and other solutions. Updated: July 2025.
861,524 professionals have used our research since 2012.