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Fortinet FortiMail vs SonicWall Email Security 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
8.2
Reviews Sentiment
7.1
Number of Reviews
48
Ranking in other categories
Advanced Threat Protection (ATP) (1st), Microsoft Security Suite (11th)
Fortinet FortiMail
Ranking in Email Security
6th
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
63
Ranking in other categories
No ranking in other categories
SonicWall Email Security
Ranking in Email Security
32nd
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 March 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 13.5%, down from 19.7% compared to the previous year. The mindshare of Fortinet FortiMail is 5.2%, down from 5.8% 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

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.
Andras Solt - PeerSpot reviewer
Reasonable pricing and good spam filtering but does not offer robust gatekeeping
It's mainly suited for mid-size companies, not for bigger companies like us. We are more than 1,000 people. In fact, we're over 2000 users, so that's why we investigated some other products, and Clearswift, for example. We likely won't increase usage. We're looking at GFI in a year or so.
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

"Microsoft Defender for Office 365 is a stable solution."
"It gives us visibility into threats and, for endpoints, it helps us to prioritize threats. We used to have a lack of visibility, but now our time to detect and respond has decreased."
"The email protection is excellent, especially in terms of anti-phishing policies."
"Microsoft Defender for Office 365's most valuable features are safe attachments and safe links."
"I like its investigation capabilities, as that is what is most important to me. It is fairly simple with a user-friendly interface."
"The most valuable feature of Microsoft Defender for Office 365 is data backups that we can provide through ticket requests."
"The most valuable feature of Microsoft Defender for Office 365 is its spam filter."
"Microsoft Defender for Office 365 has improved my organization's security. It makes it easier to manage the infrastructure without the help of third-party applications."
"The solution has a user-friendly interface. It is easy to deploy and handle. You can easily troubleshoot the issues of the solution."
"When combining this solution with other Fortinet products, such as FortiGate, it integrates well and provides a comprehensive protection package."
"I would rate Fortinet FortiMail ten out of ten overall."
"It actually filters the compromised emails when on a network layer itself."
"The user quarantine feature in the solution is good...It is a stable solution."
"FortiMail effectively filters all emails coming to our mail server, blocking malicious ones automatically."
"Fortinet FortiMail has a lot of valuable features. It works great. It also has an antivirus feature. Support for Fortinet FortiMail was also great when my team wanted to block some geographic IPs, but couldn't figure out how to do it. The support team provided clear communication on how to resolve that issue. Another valuable feature of Fortinet FortiMail is SPAM filtering which tells you how many spammy emails you've received. Based on my current use cases, I'm happy with Fortinet FortiMail."
"Fortinet FortiMail's most valuable features are antispam, antivirus, database, and data loss prevention (DLP)."
"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."
"It is a very scalable solution."
"The anti-spam aspect of the solution is its most valuable feature."
"SonicWall Email Security uses multi-layer cloud security."
"The most valuable features are the anti-spam, anti-phishing, anti-virus, and anti-spoofing."
"The most valuable feature is that it protects from spam."
"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."
 

Cons

"One area for improvement is integration. For example, when it comes to external SaaS platforms, we were not able to get a lot of information on integrations with such apps for security and authentication."
"In some situations, it has not been able to pick impersonated emails having no attachments. Technical support definitely has a scope for improvement."
"I am generally satisfied with how it currently is. If I could improve anything, I would reduce the cost."
"They can improve their security in a way where a customer can know if all their attachments are safe or not to open through a report. The solution does its job perfectly, but it never reports to the customer whether those attachments have been stopped before or not."
"Microsoft Defender for Office 365 should be more proactive."
"Microsoft needs to broaden its global support presence by establishing teams of subject-matter experts in all regions."
"The only thing they should improve is the licensing model. They should stop changing it. A year ago, the five features I mentioned were included in one product. Now, three of them are bundled into one product, and you have to pay extra for the other two. I don't mind paying extra, but I don't want them to change it every year or every six months. I need to know what I'm looking at and not worry about it next year."
"The product must provide better malware detection."
"I believe there is room for enhancement in content and web security features."
"Improving the upgrade process, making it more user-friendly, and simplifying the management of hardware components could enhance the overall user experience and appeal of Fortinet's email security solution."
"It's difficult for me to talk about areas for improvement in Fortinet FortiMail because I'm the general manager of the company and I'm an engineer with knowledge about the solution, but I'm not deeply involved in its implementation. As I mentioned previously, Fortinet FortiMail is also being used within the company, and I'm happy with its functionality, but sometimes, attacks pass and avoid the Fortinet FortiMail filters, but those could be very sophisticated attacks. There could still be an improvement in the filtering feature of the solution, though the security of Fortinet FortiMail is okay for me because I believe you can't implement one hundred percent security in any solution. The initial setup for the solution also needs improvement. The setup is supposed to be simple, but then the customer starts to complain that some of the false positive emails are reaching quarantine, so my team has to configure it again. There have been instances when Fortinet FortiMail rejects valid emails because some of the service partners of the customer have not been configured accurately, so the system considered valid mails as attacks to be quarantined, so aside from improving the filters, there should also be an improvement in the categorization of emails in the server. My team has to modify the configuration so that valid emails could pass and for Fortinet FortiMail to correctly filter the SPAM traffic. A feature that could be added to Fortinet FortiMail in its next release is advanced AI, so it can analyze and decide accurately on which mail is valid and which mail is SPAM."
"Fortinet FortiMail could improve general user management. There are no password policies for users."
"Maybe FortiMail's integration could be better."
"There are features that other solutions have that this one is lacking, such as reporting options. I hope in future releases they advance their features list."
"Sometimes, the tool flags legitimate incoming traffic as spam."
"The main area for improvement is the pricing."
"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 platform's control panel needs enhancement."
"The pricing could be improved."
"A lot of spoofed emails are still coming to the end-user, so the configuration for this option needs to be improved."
"They need well-trained partners in Nigeria."
"We would like to see more information on a dashboard about what is happening when it comes to spamming and malware."
"The reporting needs improvement."
"They should integrate the solution with third-party platforms."
 

Pricing and Cost Advice

"The license is expensive because the cost is based on the number of users."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"Microsoft Defender for Office 365 comes with Microsoft Windows. It is free with the operating system."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
"The product is very expensive."
"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."
"It is much more expensive than using another solution because we have had to include some options and upgrade our license."
"My company has a three-year license for Fortinet FortiMail, including the support, but I'm not so sure of how much the solution costs because I'm not part of the procurement team. What's more important to me is the functionality and stability of Fortinet FortiMail. In terms of Fortinet FortiMail licensing, the cost is calculated based on company requirements. For example, it's based on the features you need for your environment, on capacity, how many CPUs you have, etc."
"There is a license required for this solution and it is on an annual basis. I am satisfied with the price."
"We paid approximately $30,000 for the solution. It is less expensive than some other solutions. We have one license that carries all the features that we wanted."
"In the future I would like it if there's a possibility to lower the price of the bandwidth and UTM. It is quite expensive."
"In terms of licensing, we are using a virtual machine license for the single virtual server which it runs on. Doing it this way enables us to cut costs by only licensing FortiMail for our exact use case. If you need to expand in future, you can later buy extra licenses per virtual machine."
"Fortinet Fortimail has reasonable pricing."
"FortiMail is not cheap."
"Fortinet FortiMail is inexpensive."
"The cost is cheaper than Sophos. I would rate it as 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."
"Our customers purchase the solution's yearly license."
"When compared with Cisco, it is very well priced. Cisco is very expensive."
"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
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Educational Organization
49%
Computer Software Company
8%
Financial Services Firm
5%
Government
4%
Computer Software Company
18%
Manufacturing Company
14%
Financial Services Firm
11%
Wholesaler/Distributor
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?
I don't have detailed specifics on pricing, setup cost, or licensing.
What needs improvement with Microsoft Defender for Office 365?
I am generally satisfied with how it currently is. If I could improve anything, I would reduce the cost.
What is your experience regarding pricing and costs for Fortinet FortiMail?
The pricing of Fortinet FortiMail is cheaper compared to Cisco, which was quite expensive.
What needs improvement with Fortinet FortiMail?
The area that could use some improvement in Fortinet FortiMail is the integration process. I would like the integrati...
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...
 

Also Known As

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

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Magromer Cueros y Pieles S.A.
Star Kay White, Locala Community Partnerships
Find out what your peers are saying about Fortinet FortiMail vs. SonicWall Email Security and other solutions. Updated: March 2025.
842,592 professionals have used our research since 2012.