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SonicWall Email Security vs Sophos Email 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...
Sponsored
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
52
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (2nd), Microsoft Security Suite (10th), Secure Email Gateway (SEG) (1st)
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
Sophos Email
Ranking in Email Security
10th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
32
Ranking in other categories
Office 365 Protection (1st)
 

Mindshare comparison

As of July 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 12.3%, down from 16.9% compared to the previous year. The mindshare of SonicWall Email Security is 0.5%, down from 0.6% compared to the previous year. The mindshare of Sophos Email is 2.1%, down from 2.6% 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.
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…
Ahmed_Fahmy - PeerSpot reviewer
Provides a powerful and simple email protection with proven management benefits
Sophos Email is integrated with Office 365 and Google Workspace. It offers anti-spam functionality, which is easy to manage and comes with documentation on how to integrate it with Office 365 and Google Workspace. It provides a defense layer for email protection, scanning every incoming and outbound email for malware and spam. It can also function temporarily as an email solution if my vendor from Office 365 or Google Workspace is out of service.

Quotes from Members

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

Pros

"Microsoft Defender has a feature to protect each and every attachment. Even if it's an encrypted attachment, it will check for any potential threats."
"Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of various email campaigns, pinpointing where they emanate from, and identifying the individuals within our organization who are affected."
"The benefit that stands out to me is the ability for multiple individuals to collaborate simultaneously within the same document. Additionally, there is the option to save the document directly in the integrated OneDrive or SharePoint."
"Microsoft Defender for Office 365's most valuable features are safe attachments and safe links."
"Does a thorough job of examining email and URLs for malicious content."
"The most valuable feature of Microsoft Defender for Office 365 is data backups that we can provide through ticket requests."
"Microsoft Defender for Office 365's most valuable feature is its performance."
"The initial setup is straightforward. You just add the license, click it, and then you can set up the rules. It is quite simple."
"The product is easy to manage in terms of configurations."
"Setup was easy. It took about 30 minutes."
"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."
"Beside a few issues with specificity in the email protection controls, this product is very good at handling email security."
"The most valuable features are the anti-spam, anti-phishing, anti-virus, and anti-spoofing."
"It is a very scalable solution."
"The most valuable feature is that it protects from spam."
"Our client recently received many emails, and their employees didn't realize these emails were phishing attempts. Consequently, they clicked on them and fell victim to the attack. Therefore, it is important to secure their system with Sophos Email Security."
"There are many features that are important, but among those, the spam protection feature is very valuable. It help us to safeguard the email against phishing and ensures that there is maximum security enabled for our communication processes. It has a huge role in protecting our emails from potential threats."
"The most valuable feature of Sophos Email is the sandbox. We're able to scan the file, isolate it, and look at it before it is delivered. It is highly effective."
"The tool's most valuable feature is the anti-spam detection filter. Its threat email intelligence features help to identify email data."
"I found the user interface friendly."
"I find the comprehensive features of Sophos Email most valuable."
"Sophos Email is in the cloud and integrated with its firewall."
"The most valuable feature is its email security."
 

Cons

"We still see many false positives from time to time with Microsoft Defender for Office 365, so it would be good if we can reduce those false positives and provide better workflows for our end users, as sometimes they may not know what to do when they encounter a false positive."
"The pre-sales cost calculations could be more transparent."
"The product must provide better malware detection."
"The custom alerts have to improve a lot."
"Microsoft should provide more documentation for users so they can self-educate. I would like to see more documentation for advanced security features."
"I am generally satisfied with how it currently is. If I could improve anything, I would reduce the cost."
"Sometimes, phishing emails manage to pass through the filter, so the system needs to enhance its phishing email detection capabilities."
"Microsoft Defender for Office 365 should improve the troubleshooting tools. It's unclear whether the device is blocked at the firewall level or at the device itself. The granularity needed for troubleshooting is currently lacking. From my perspective, Microsoft should address this issue to benefit many users who likely share the same sentiment."
"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."
"SonicWall Email Security could improve by making the file blocking and the release feature easier to use"
"The platform's control panel needs enhancement."
"They need well-trained partners in Nigeria."
"The protection level for email security isn't 100%. I'm still getting some spam and junk mail."
"We would like to see more information on a dashboard about what is happening when it comes to spamming and malware."
"There could be definition updates included in the subscription."
"The solution's sandboxing and spam control features could be improved."
"Sophos Email could better detect fake emails, especially when the domain names are similar. It needs to improve spotting spoofed domains, like when one letter differs in a domain name. It also needs to incorporate AI detection. Barracuda detects suspicious emails better. However, malware scanning is better in Sophos Email."
"The solution should be able to support the cloud environment."
"Lacks visibility into spam emails."
"The solution has not found a way to block certain kinds of phishing emails."
"Sophos Email could improve DLP features."
"It was sometimes hard to find the settings in the solution's interface."
"Sophos Email has few improvements to implement, including the handling of incoming emails in the systems. It needs to add additional feature that helps in enhancing the scanning processes of these emails. While adding these features, it should work towards improving the current features also."
 

Pricing and Cost Advice

"I was working in the government and it was too expensive for us to use our Microsoft products."
"The license is expensive because the cost is based on the number of users."
"I know that the product is incredibly expensive."
"The pricing is normal. Considering its popularity, it's not overpriced."
"Defender for 365 comes in various plans and licenses, along with other Microsoft security solutions. Purchasing this kind of package or security bundle gives good value for money, and that's what I recommend."
"For licensing, it's usually a yearly package for customers who are subscribed to Office 365, but they can also pay on a monthly basis."
"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."
"The product is expensive."
"When compared with Cisco, it is very well priced. Cisco is very expensive."
"I rate the application’s pricing a five out of ten."
"The platform offers a yearly license."
"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."
"We have a two-year license subscription and the price is very high."
"The cost is cheaper than Sophos. I would rate it as five out of ten."
"Our customers purchase the solution's yearly license."
"Sophos Email is priced lower than its competitors."
"The pricing could improve by having additional discounts. For example, when customers buy have more than 50 or more users, there should be additional discounts."
"I rate the product's pricing a seven out of ten."
"The product is cheaper compared to other solutions."
"The platform is inexpensive. It offers a cost-effective licensing model. We purchase its yearly license."
"The tool's price is reasonable. On a yearly basis, there is a 20 percent increase in prices, but it is not an issue."
"The pricing is affordable, so I’d rate it around a four out of ten on the pricing scale. We pay about fifty pounds a month, including hardware so that costs may differ without it."
"It is an expensive solution. On a scale of one to ten, where one is low price, and ten is high price, I rate the pricing a seven."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
14%
Manufacturing Company
10%
Financial Services Firm
9%
Construction Company
8%
Computer Software Company
13%
Manufacturing Company
9%
Comms Service Provider
8%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
Microsoft is quite affordable with a lot of features available for any size organization.
What needs improvement with Microsoft Defender for Office 365?
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS recor...
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 ema...
What do you like most about Sophos Email?
The solution's identity proxy feature is very good and reliable.
What is your experience regarding pricing and costs for Sophos Email?
Sophos Email pricing is a bit high, especially since I purchase through a partner, and they sell it at a higher price...
What needs improvement with Sophos Email?
Sophos Email does not work with split delivery. If I have a domain with 100 mailboxes and want to protect only 50, it...
 

Also Known As

MS Defender for Office 365
Dell SonicWALL Email Security Platform, SonicWall Hosted Email Security
Sophos Email Security
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Star Kay White, Locala Community Partnerships
Del Monte Foods, Terra Verde, spicerhaart, RIVERLITE, Dataprise, SureBridge, Reed's School, Sayfol International School
Find out what your peers are saying about SonicWall Email Security vs. Sophos Email and other solutions. Updated: June 2025.
860,592 professionals have used our research since 2012.