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Fortinet FortiMail vs Kiteworks 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

Cloudflare One
Sponsored
Ranking in Email Security
20th
Average Rating
8.6
Reviews Sentiment
6.5
Number of Reviews
23
Ranking in other categories
Secure Web Gateways (SWG) (12th), Data Loss Prevention (DLP) (21st), Cloud Access Security Brokers (CASB) (13th), Distributed Denial-of-Service (DDoS) Protection (8th), Software Defined WAN (SD-WAN) Solutions (12th), Access Management (11th), Bot Management (3rd), ZTNA as a Service (9th), ZTNA (4th), Secure Access Service Edge (SASE) (10th), Remote Browser Isolation (RBI) (3rd)
Fortinet FortiMail
Ranking in Email Security
5th
Average Rating
8.6
Reviews Sentiment
6.8
Number of Reviews
68
Ranking in other categories
No ranking in other categories
Kiteworks
Ranking in Email Security
26th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
13
Ranking in other categories
Enterprise Content Management (16th), Managed File Transfer (MFT) (8th), Content Collaboration Platforms (14th), Secure Email Gateway (SEG) (9th)
 

Mindshare comparison

As of June 2026, in the Email Security category, the mindshare of Cloudflare One is 1.6%, up from 1.6% compared to the previous year. The mindshare of Fortinet FortiMail is 2.9%, down from 4.8% compared to the previous year. The mindshare of Kiteworks is 0.8%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Fortinet FortiMail2.9%
Cloudflare One1.6%
Kiteworks0.8%
Other94.7%
Email Security
 

Featured Reviews

CV
Network Architect at IP Dimension
Cloud security has improved remote access and has reduced costs for smaller client sites
I have used Cloudflare One's Identity-Aware Proxy, and it is quite straightforward from what I have seen so far. The app registration on the Azure side integrates fully into Cloudflare, and I am very satisfied with that part because it is easy to set up. The integration of Cloudflare One's Secure Web Gateway and Zero Trust Network Access works without any issues. That part is pretty automatic, and if you complete the rest of the setup, it comes together by itself with no issues from my side. What makes it nice is that we can actually start replacing on-site firewalls at this stage for the smaller clients because it does not matter if they go to a coffee shop or work from home; they are still secured by the same connection. The hops get shorter and you get better latency. We have done testing to see if it is better. One thing that we did notice with our proof of concept with our current client is that they have people connecting from the UK. When they used their previous VPN solution, uploading CAD drawings and other files to the server took a long time. They mentioned that it is much quicker on Cloudflare One's solution. I definitely believe that is part of the improved performance, and I am satisfied with that as well. What is nice about Cloudflare One is that it makes the setup easier and also easier to train technicians to maintain it. Compared to legacy systems, we do not need to get fancy firewalls in place that are costly. That is definitely also a cost-saver with Cloudflare One.
Abhimanyu Das - PeerSpot reviewer
Senior Cybersecurity Engineer at Kyndryl
Targeted email filtering has reduced spam and phishing and now saves significant investigation time
The best features of Fortinet FortiMail include its techniques and tactics, which are highly effective compared to other solutions such as Microsoft 365. Although Fortinet FortiMail may not be as advanced in some aspects, it is well recognized for its strong performance in handling spam and phishing. It performs thorough mail scanning and also offers a sandboxing feature that enhances protection. Fortinet FortiMail has had a positive impact on my organization by significantly reducing unwanted email activities such as spam and phishing. It provides accurate detection and generates results that often exceed what can be achieved through manual analysis. Since deploying Fortinet FortiMail, I have observed a reduction in investigation time by at least 20 to 30 percent.
KT
Associate Consultant at a tech consulting company with 10,001+ employees
Streamlined global file sharing with user-friendly interface and self-service capabilities
I'm not a network expert, however, there must be some room for improvement. Perhaps there could be a notification to users about their bandwidth or network packet loss. If users receive such notifications, they can understand any disruptions are due to issues with their network or bandwidth rather than the site or Kiteworks. Additionally, I work from offshore India, and I told my client manager to communicate with the Kiteworks forum salesman regarding one feature. I noticed the Kiteworks login UI is very basic, lacking customization. Allowing more HTML tags to add hyperlinks or user-friendly information on the home page would be very useful.

Quotes from Members

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

Pros

"The solution has different options that can be used to differentiate DDoS attacks."
"It is a stable solution."
"What makes it nice is that we can actually start replacing on-site firewalls at this stage for the smaller clients because it does not matter if they go to a coffee shop or work from home; they are still secured by the same connection."
"It's a perfect solution from my perspective; it's easy to understand and easy to configure."
"For Cloudflare Access, I am using the free plan...The most valuable feature is their protection."
"It will take the blow rather than our applications should an attack occur."
"The capabilities of the software are strong enough for me to do what it's supposed to do. For me, we don't need to do a lot of configuration on our site. We just enable it and monitor it."
"We mostly use Cloudflare WAF, and gets basic Cloudflaire DDoS, caching as extra bonus . We like the factor these features are all integrated into 1 console, simple to manage."
"Fortinet FortiMail is a very good product and reliable, and we find it easy to sell it."
"It is a very reliable program and it works great."
"The most valuable aspects of this solution are that it protects us from spam and phishing attacks. We had a lot of attacks coming in and then we deployed this solution and they stopped. We no longer have any spam or phishing issues."
"Fortinet FortiMail is very reliable and stable since the databases are very strong."
"The user quarantine feature in the solution is good...It is a stable solution."
"The filtering is really effective to protect any mail environment of any company."
"The most valuable feature of Fortinet FortiMail is its fully detailed dashboard."
"It can block a lot of fake emails."
"The solution removes the limitations with file attachment size that is found with regular email."
"The most valuable feature is the ability to allow end-users to manage their own information and data with minimal administration. That's the best feature from my perspective."
"The top two features are the two-factor authentication, which is pretty good. It's easily understood by the users. And their API is rather robust. We have numerous integrations that work off the API."
"I can identify from which region our users are uploading or downloading files."
"We could see whether the customer with whom we shared a file had downloaded it, which was not available with GitHub."
"It’s a great product that you should seriously consider and take the first step by training."
"We can see when people are sending things. We can definitely see who is sending to whom. From the administrative logs, we can see who is sending to an outside entity, and those logs are retained for quite a while."
"Kiteworks is easy to manage and maintain with a user-friendly interface and I recommend it to anyone that requires a file-sharing system that supports SFTP."
 

Cons

"They don't have a person to provide support for customers using the solution under their free plan."
"For the topic of improvement, providing some training material is one of my suggestions."
"The free plan has limitations. For example, I can only set up three rules, and the application firewall is unavailable."
"Cloudflare One is not very powerful, but for what we require, it is basic and sufficient."
"Operating and tuning the product is difficult."
"Cloudflare DDoS has poor technical support."
"The response time for support must be reduced."
"The software has automated alerts, but the automated alerts are not available in the mobile app."
"What's missing in Fortinet FortiMail is some sandbox information for some of the emails. It's probably configuration-based, where it could be configured on some emails. For example, there was malware in some emails that weren't detected in some of the Fortinet FortiMail sessions, but it should have been configured from my company's end to better catch scam emails, but overall, the solution is okay. At the moment, my company is okay with the current Fortinet FortiMail offerings, but in the past, because of a lack of understanding, my team wasn't able to quickly implement the geographical IP blocking feature. It was time-consuming to implement that feature, but that wasn't a fault of Fortinet FortiMail. The issue was from my team's end, but just by emailing the support team, that issue was resolved, so right now, there isn't any additional feature I'd like added to Fortinet FortiMail."
"The infrastructure could be improved. The data leak prevention could also be better."
"Online support sometimes takes up to a week to get back to you."
"The solution could improve by making the UI more user-friendly and increasing spam and threat detection capabilities."
"A room for improvement in Fortinet FortiMail is that it only has a hardware version. I also didn't find the solution scalable, so that's another area for improvement."
"The web console management interface could be improved."
"FortiMail's dashboard is somewhat complex and could be made simpler."
"Maybe FortiMail's integration could be better."
"In my experience, their technical support can be a little slow."
"I noticed the Kiteworks login UI is very basic, lacking customization. Allowing more HTML tags to add hyperlinks or user-friendly information on the home page would be very useful."
"File location could be improved."
"We mainly had stability issues with kiteworks, where we were pushing the limits of its capability."
"It could be more stable. In the next release, it would be better if it was more stable with improved performance."
"The system is extremely stable, but because it is a "COTS" system access is restricted and you must use the solution's support to make even simple changes, which increases the downtime."
"It would be nice if Kiteworks could provide a free version of the platform so that it could be used for a certain number of file transfers. We could be charged a fee if we exceeded the number of allotted file transfers."
"There are always issues when there are bugs or upgrades. The challenge with upgrading is getting more storage from the customer. Every time we have a new version, it requires additional storage. This means that the customer would need to procure more storage for their server, which they don't like because it means additional cost to them. So, I think my request would be that the version upgrades don't require any significant storage requirement."
 

Pricing and Cost Advice

"The solution's pricing lacks transparency."
"The solution is not that expensive."
"Cloudflare Zero Trust Platform's pricing is good."
"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."
"The prices are slightly expensive."
"The pricing of the solution is cheap. The licensing cost is also very low. I rate the cost and pricing a three out of ten."
"The pricing is somewhere in the middle. I would rate the pricing a seven out of ten."
"My company has to make yearly payments towards the licensing costs attached to the solution. There are no hidden charges apart from the licensing costs of the solution."
"The solution is quite pricey compared to other competitors in the market."
"You need to pay additional fees for premium support."
"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."
"Fortinet FortiMail is a little bit expensive."
"It is an expensive product."
"Pricing is straight-forward and renewable without complicated pricing structures."
"The fees for Fortinet FortiMail can be complicated. However, overall the pricing is fair."
"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."
"They changed it midstream. We were being charged a certain flat rate for SFTP traffic. For whatever reason, at the beginning of the year, our pricing changed, and we are now being charged more for using a feature of the product than we were when we first bought it. That has been our experience with billing. It turned out to be more expensive than when we started with it."
"It is not really expensive. I mean, to me it's obviously expensive, but it's worth it."
"The price of Kiteworks is reasonable."
"The license management is changing and confusing. If I could make one change to it, it would be better license management through the API."
"I believe it's a little costly, but given the faith that we put into it from a security perspective to maintain the integrity of our patient information that is being transferred through this system, that's a small price to pay. So, on the surface, it might look like a lot of money, but depending on the need for security, which is where we feel it shines, it's okay price-wise."
"The solution is very expensive because we are buying with Malaysian Ringgit and it's sold in US dollars."
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Top Industries

By visitors reading reviews
Construction Company
19%
Comms Service Provider
10%
Financial Services Firm
9%
Manufacturing Company
8%
Financial Services Firm
9%
Manufacturing Company
9%
Construction Company
8%
Computer Software Company
8%
Financial Services Firm
13%
Government
10%
Comms Service Provider
10%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise1
Large Enterprise12
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise23
Large Enterprise15
By reviewers
Company SizeCount
Small Business3
Large Enterprise11
 

Questions from the Community

What needs improvement with Cloudflare Zero Trust Platform?
In my opinion, Cloudflare One can be improved mainly through compatibility, as the integration should be much simpler...
What is your primary use case for Cloudflare Zero Trust Platform?
Cloudflare One's primary use case for my organization is to protect servers and to provide remote access with the VPN...
What needs improvement with Fortinet FortiMail?
I think they should improve Fortinet FortiMail on-premises by enhancing its user interface. Additional features they ...
What is your primary use case for Fortinet FortiMail?
I do have a partnership with Fortinet. I have been both a partner and reseller.
What is Kiteworks?
Kiteworks is a secured file sharing platform that enables users to collaborate with different parties across a robust...
What needs improvement with Kiteworks?
I'm not a network expert, however, there must be some room for improvement. Perhaps there could be a notification to ...
What advice do you have for others considering Kiteworks?
Scalability is impressive. It can be highly available, resilient, and scalable infrastructure. I can confidently give...
 

Also Known As

Cloudflare Area 1 Email Security, Cloudflare Bot Management, Cloudflare Gateway, Cloudflare Zero Trust Platform, Cloudflare DDoS, Cloudflare SASE & SSE Platform
FortiMail
Accellion
 

Overview

 

Sample Customers

23andMe
Magromer Cueros y Pieles S.A.
United States Securities and Exchange Commission, National Health Service, Husch Blackwell LLP, NYC Health + Hospitals, Viatris, MITRE Corporation, Chubb, Kraft Heinz, KPMG, Kohler, National Institute of Standards and Technology, Purdue Pharma, AVL
Find out what your peers are saying about Fortinet FortiMail vs. Kiteworks and other solutions. Updated: June 2026.
900,644 professionals have used our research since 2012.