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Fortinet FortiMail vs KnowBe4 vs Proofpoint Email Protection comparison

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Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

Mindshare comparison

Email Security Mindshare Distribution
ProductMindshare (%)
Fortinet FortiMail3.2%
Proofpoint Email Protection7.2%
Microsoft Defender for Office 3656.9%
Other82.7%
Email Security
Security Awareness Training Mindshare Distribution
ProductMindshare (%)
KnowBe413.7%
Riot8.0%
Proofpoint’s ZenGuide5.7%
Other72.6%
Security Awareness Training
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection19.5%
Microsoft Defender for Office 36517.0%
Mimecast Email and Collaboration Threat Protection15.9%
Other47.6%
Secure Email Gateway (SEG)
 

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 Associate at a tech vendor with 10,001+ employees
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.
Amran Hossain - PeerSpot reviewer
Senior Software Engineering Manager at Field Nation
Training program enables comprehensive security awareness and cautious email practices
One feature that would be highly beneficial in a future release is the ability to automatically send training articles or security tips to users on a regular, scheduled basis—for example, weekly or monthly. While the current training modules and phishing simulations are highly effective, ongoing awareness is equally important to keep security top of mind in day-to-day operations. These short, digestible articles or micro-learning content could cover recent phishing trends, real-world examples of security breaches, or quick tips on secure online behavior. Periodic delivery would serve as a continuous learning touchpoint, reinforcing key concepts from the main training and adapting to evolving threats. Ideally, this feature would also include personalization, allowing content to be tailored based on a user’s role, previous training performance, or common mistakes observed in phishing simulations. This kind of proactive, lightweight training approach could significantly enhance employee engagement with security practices and help maintain a strong security posture over time.
Vivek_Jaiswal - PeerSpot reviewer
Cyber Security Senior Specialist at a tech vendor with 10,001+ employees
Advanced email defenses have protected healthcare staff and simplified incident response
There are many things that could be improved, but once you are very well-known about this application, you could perform that improvement plan. There are many scenarios where I have worked with Proofpoint Email Protection where a requirement was not fulfilled due to the limitation of the product. For example, we have Report Phish automation. With Proofpoint Email Protection, we can configure Report Phish and forward the email to any email addresses or shared mailboxes that we provide in the configuration. That email is forwarded as is with whatever the user reports as a phishing email. However, some organizations do not want the reported phishing email to go as is into their ticketing tool because it might contain malicious attachments and malicious links that are not required to go into their internal organization. Proofpoint Email Protection has that limitation. They cannot forward or restrict, but could forward only limited information such as some header information, sender subject details, or only limited information. As it is, the email can be forwarded, not as limited information. Proofpoint TRAP solution also has limitations. It cannot create alert notifications for some specific requirements because Proofpoint works the way it is designed, and if you want it to work based on our requirement, that should not be possible. There is a scope of limitations here. There are many improvements that should be made. First, they should work on their false positive minimization. Proofpoint generally takes all emails, investigates them, and classifies them. There are many situations where legit emails are blocked because that domain is found to be under a malicious category somehow, but actually it is not. False positive minimization could be improved, and they could enhance their other applications or solutions. There are many things that they could improve from each application and each portal.
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Top Industries

By visitors reading reviews
Construction Company
20%
Comms Service Provider
11%
Financial Services Firm
9%
Manufacturing Company
6%
Computer Software Company
9%
Financial Services Firm
9%
Manufacturing Company
8%
Construction Company
7%
Financial Services Firm
10%
Computer Software Company
10%
Construction Company
8%
Manufacturing Company
7%
Financial Services Firm
12%
Manufacturing Company
9%
Computer Software Company
8%
Comms Service Provider
6%
 

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 Business5
Midsize Enterprise5
Large Enterprise10
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise23
Large Enterprise55
 

Questions from the Community

What needs improvement with Cloudflare Access?
Cloudflare Access has strong integration with Microsoft, among other platforms. However, when it comes to Kaspersky, ...
What is your primary use case for Cloudflare Access?
Cloudflare Access provides secure access to internal applications for employees, external members of the organization...
What advice do you have for others considering Cloudflare Access?
Cloudflare Access is one of the best integrations available. While about two hundred vendors offer similar services, ...
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 your experience regarding pricing and costs for KnowBe4?
I would not know about the pricing because it has been subsidized for us, so I am not fully aware of the actual cost.
What needs improvement with KnowBe4?
I have a challenge with the stability while using KnowBe4. I have made an observation regarding the login process. Fo...
What is your primary use case for KnowBe4?
We use KnowBe4 as a training platform where we have many training videos to watch and complete quizzes for my organiz...
What is your experience regarding pricing and costs for Proofpoint Email Protection?
This is not something that I deal with regarding pricing, setup cost, and licensing.
What needs improvement with Proofpoint Email Protection?
For a beginner level, someone who is very new to email security might find it difficult to manage as an admin. Naviga...
What is your primary use case for Proofpoint Email Protection?
Proofpoint Email Protection serves as our email security solution. The entire SOC team uses Proofpoint Email Protecti...
 

Comparisons

 

Also Known As

Cloudflare Area 1 Email Security, Cloudflare Bot Management, Cloudflare Gateway, Cloudflare Zero Trust Platform, Cloudflare DDoS, Cloudflare SASE & SSE Platform
FortiMail
No data available
Proofpoint Enterprise Protection, Proofpoint Digital Protection
 

Overview

 

Sample Customers

23andMe
Magromer Cueros y Pieles S.A.
West Aurora Public School District 129
Blocket, University of Waterloo, Lincoln Memorial University, WellSpan Health, U-Haul, Carestream Health, Westinghouse
Find out what your peers are saying about Proofpoint, Microsoft, Check Point Software Technologies and others in Email Security. Updated: May 2026.
895,151 professionals have used our research since 2012.