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Fortinet FortiMail vs Mimecast Advanced Email Security comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Feb 8, 2026

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
Average Rating
8.6
Reviews Sentiment
6.5
Number of Reviews
23
Ranking in other categories
Email Security (20th), 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
Average Rating
8.6
Reviews Sentiment
6.8
Number of Reviews
68
Ranking in other categories
Email Security (5th)
Mimecast Advanced Email Sec...
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
39
Ranking in other categories
Email Archiving (2nd), Secure Web Gateways (SWG) (15th), Office 365 Protection (2nd), Secure Email Gateway (SEG) (3rd)
 

Mindshare comparison

Email Security Mindshare Distribution
ProductMindshare (%)
Fortinet FortiMail2.9%
Proofpoint Email Protection6.8%
Microsoft Defender for Office 3656.3%
Other84.0%
Email Security
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Mimecast Email and Collaboration Threat Protection15.1%
Proofpoint Email Protection19.0%
Microsoft Defender for Office 36516.1%
Other49.8%
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 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.
HS
Email Security Engineer at Logic Infosecurity
Experience high detection and user-friendly policies with reliable email security implementation
The system is not user-friendly because you have to create policies that are mapped in a dictionary. As an IT engineer, I understand how it works, but explaining it to another IT person can be difficult. Having more user-friendly dashboards would improve the work experience. In Mimecast Email Security, checking policies in the dictionary or gateway is very complicated, and not everyone understands this process. If you examine the Check Point portal, it's user-friendly with easily accessible tabs that anyone can explore. With Mimecast Email Security, making changes might impact existing mailboxes. The portal is complicated compared to Check Point's user-friendly interface.

Quotes from Members

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

Pros

"It is a stable solution."
"Cloudflare DDoS is better than its competitors for its security, deployment, and scalability."
"Enables me to work from two locations."
"For Cloudflare Access, I am using the free plan...The most valuable feature is their protection."
"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."
"Cloudflare is simple to use."
"Cloudflare Access is a stable solution."
"It's the endpoint exposition. We don't need to expose our VPN server to the internet and need a zero-test solution. I can apply some conditional access to the endpoint that's connecting to our network to check their security policies or the security condition of their workstation. Once the workstation is trying to connect to my internal network, then I would like to check the discrete condition of these endpoints that are trying to access my internal network. We created some conditional access. We have CrowdStrike, to check if the CrowdStrike is installed, to check if it's updated, and to check for Windows updates. We created some conditional policies to check it."
"FortiMail effectively filters all emails coming to our mail server, blocking malicious ones automatically."
"Fortinet’s support services are good."
"They have a feature called CDR, Content Disarm, Reconstruction, click protection, and DLP for encryption purposes."
"It is one of the most efficient solutions in our environment. We have more than nine hundred users. All of these users are protected by Fortinet FortiMail."
"FortiMail has a low cost and high support."
"It is a scalable solution."
"We found the initial setup to be mostly straightforward."
"The solution is very reliable and very stable."
"Due to our specialized use case, that HIPAA dictionary really comes in handy."
"The product is good; to date, we have not faced any challenges."
"Mimecast Mailbox Community is an email gateway required for every organization, regardless of size."
"It's really quite user-friendly. In terms of technical superiority and the product itself, there are no complaints. It is really cutting edge."
"Mimecast is pretty good, even if you're on Office 365."
"We like Mimecast's spam filtering. The email signature feature is also a big plus for our users."
"If I had to mention one or two things that bring the biggest benefit, I would say the security of the emails and dealing with everything."
"The security on offer is very good."
 

Cons

"The free plan has limitations. For example, I can only set up three rules, and the application firewall is unavailable."
"From a logging perspective, it is still a bit difficult to see exactly what users are being blocked with the current views."
"Cloudflare DDoS has poor technical support."
"The software has automated alerts, but the automated alerts are not available in the mobile app."
"Lacks a VPN feature to provide a secure connection to the data center."
"Feedback could be enhanced. While I work efficiently with Clover as a partner in Mexico City, sometimes the information and requests are easier to manage with more concrete solutions."
"Our customers no longer use Cloudflare because its service is subpar."
"The onboarding process can be improved a little bit."
"I have faced issues from one of the customers that they received spam emails. I think they need to look into it and improve their signatures."
"I think the security of the product could improve."
"I need a stable update in the product that stays for a long time instead of having to deal with frequent updates."
"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."
"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."
"I will not give good marks on their support team."
"High Availability needs improvement."
"It is not easy to install."
"The price could be better, it should be reduced."
"The solution is complex and not easy to use."
"I'd like to have better support from the product in the future."
"The interface and the documentation could be improved. They can also include some more training resources and content like video. While setting things up, I had to search for the information quite a bit. It took me time to find the correct way to do something. The information is there, but it is sort of all over the place. They can create a better help knowledge base or help portal. It retains your email for 45 days. They can maybe increase this duration."
"From an administrative point of view, Mimecast is a little bit cumbersome and difficult."
"Their support should be improved. They are notorious for sending you to knowledge-based articles rather than actually talking to you, but that is, unfortunately, kind of becoming a trend with everything. In terms of features, I haven't had any complaints. However, I don't like the fact they moved to a paid training subscription model. They used to have a lot of free webinars for training, but they have started to charge for them in the past year."
"Mimecast needs to reduce the number of false positive emails; a big pain point for us."
"The price could be better, it should be reduced."
 

Pricing and Cost Advice

"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."
"The pricing is somewhere in the middle. I would rate the pricing a seven out of ten."
"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 prices are slightly expensive."
"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 not that expensive."
"Cloudflare Zero Trust Platform's pricing is good."
"The solution's pricing lacks transparency."
"This is a good solution and value for the money."
"FortiMail is not cheap."
"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."
"There is a license required for this solution and it is on an annual basis. I am satisfied with the price."
"The licensing model for this solution is better because it is based on the box and not the number of users."
"It is reasonable."
"The product's licensing part depends on the number of mailboxes and the hard disk needed by customers. The cost of the license depends on the number of mailboxes and the number of emails."
"There is either an annual or six-month charge to use this solution. Fortinet FortiMail is cheaper than Proofpoint or Cisco Security, or other email security appliances."
"Its price is in the middle range. It is a structured licensing model where there are various components that you can add or choose to add or not."
"It is a bit expensive."
"Compared to the other solutions in the market, Mimecast Email Security with Targeted Threat Protection's pricing is fine."
"For what it is, the product is overpriced."
"The product price is moderate. I rate the pricing a five out of ten."
"Two subscription options are currently offered: monthly and yearly. My suggestion is to opt for the yearly subscription as it can give some discount. The pricing isn't high as other cloud solutions are pricier than Microsoft's offerings."
"The solution is expensive."
"The licensing costs are per-user for the product that you get with them."
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Top Industries

By visitors reading reviews
Construction Company
19%
Comms Service Provider
11%
Financial Services Firm
9%
Manufacturing Company
6%
Financial Services Firm
9%
Computer Software Company
9%
Manufacturing Company
8%
Construction Company
7%
Computer Software Company
12%
Financial Services Firm
8%
Comms Service Provider
6%
Government
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 Business19
Midsize Enterprise11
Large Enterprise13
 

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 needs improvement with Mimecast Email Security with Targeted Threat Protection?
There is room for improvement since new threats are emerging. Considering the availability of new features would be w...
 

Also Known As

Cloudflare Area 1 Email Security, Cloudflare Bot Management, Cloudflare Gateway, Cloudflare Zero Trust Platform, Cloudflare DDoS, Cloudflare SASE & SSE Platform
FortiMail
Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Email and Collaboration Threat Protection
 

Overview

 

Sample Customers

23andMe
Magromer Cueros y Pieles S.A.
Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Find out what your peers are saying about Fortinet FortiMail vs. Mimecast Advanced Email Security and other solutions. Updated: January 2024.
896,692 professionals have used our research since 2012.