Fortinet FortiMail vs Mimecast Advanced Email Security comparison

The compared Fortinet and Mimecast solutions aren't in the same category. Fortinet is ranked #4 in Email Security , with an average rating of 8.6, and holds a 2.9% mindshare in the category. Mimecast is ranked #3 in SEG , with an average rating of 8.5, and holds a 15.2% mindshare. Additionally, 94% of Fortinet users are willing to recommend the solution, compared to 90% of Mimecast users who would recommend it.

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Executive SummaryUpdated on Feb 8, 2026

Fortinet FortiMail and Mimecast Advanced Email Security compete in the email security solutions category. Fortinet FortiMail appears to have an upper hand due to its comprehensive features and competitive pricing.

Features: Fortinet FortiMail is known for its multi-layered security, providing anti-spam, antivirus, and data leak prevention. It also offers granular spam filtering, sender reputation mechanisms, and supports DNS blacklists, making it adaptable for organizations of various sizes. Mimecast Advanced Email Security offers robust impersonation protection and sandboxing, along with direct Microsoft 365 integration and advanced identity protection features.

Room for Improvement: Fortinet FortiMail users recommend improved integration with sandbox solutions, more intuitive encryption features, and better reporting capabilities. Mimecast is critiqued for complex management interfaces and high licensing costs, along with a need for more flexible filtering settings and competitive pricing.

Ease of Deployment and Customer Service: Fortinet FortiMail supports diverse deployment models and is praised for its straightforward setup within Fortinet environments, though some report delays in customer service. Mimecast, integrated extensively with Microsoft clouds, faces configuration complexity but is recognized for solid technical support.

Pricing and ROI: Fortinet FortiMail is known for its flexible licensing model, offering affordability with performance-based pricing, leading to a positive ROI through reduced spam. Mimecast's per-user pricing is seen as expensive but justified by enhanced security capabilities, delivering significant ROI despite ongoing pricing concerns.

To learn more, read our detailed Email Security Report (Updated: June 2026).

Buyer's Guide

Email Security

June 2026

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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

Mindshare comparison

Email Security Mindshare Distribution
Product	Mindshare (%)
Fortinet FortiMail	2.9%
Proofpoint Email Protection	6.7%
Microsoft Defender for Office 365	6.1%
Other	84.3%

Email Security

Secure Email Gateway (SEG) Mindshare Distribution
Product	Mindshare (%)
Mimecast Advanced Email Security	15.2%
Proofpoint Email Protection	18.6%
Microsoft Defender for Office 365	15.3%
Other	50.900000000000006%

Secure Email Gateway (SEG)

Featured Reviews

Cobe Van Coller

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.

Read full review

Abhimanyu Das

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.

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Avinash Mishra

Manager - EUC at Finthrive

Advanced email filtering has blocked massive spam volumes and prevents unauthorized data leaks

Improvements for Mimecast Advanced Email Security include enhancing the user interface and accessibility, particularly regarding admin capabilities to add or modify user accounts. Streamlining this could improve overall usability and security management for users. Reporting is another area needing improvement in Mimecast Advanced Email Security, as the reports provided are not very easy to decipher. With artificial intelligence being integrated into various tools including Mimecast Advanced Email Security, I believe there is potential to enhance functionality, enabling users to ask specific questions and retrieve concise answers instead of overwhelming data. I choose a nine for Mimecast Advanced Email Security because improvements such as better user interface and artificial intelligence integration features would greatly enhance its usability. While no tool is perfect, these adjustments could greatly elevate Mimecast Advanced Email Security's capabilities.

Read full review

Quotes from Members

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

Pros

"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."

"For Cloudflare Access, I am using the free plan...The most valuable feature is their protection."

"Cloudflare Access is part of the Zero Trust philosophy."

"It is a stable solution."

"It's a perfect solution from my perspective; it's easy to understand and easy to configure."

"Using Cloudflare One makes my work quite easy because for DDoS protection, all I need to do is understand the OSI model and click; it makes it easier than trying to write a command line or use a Linux command."

"Cloudflare DDoS is better than its competitors for its security, deployment, and scalability."

"The best feature is rate limiting. If I'm expecting 500 visits per hour, Cloudflare will limit the requests if I suddenly get 50,000."

More Cloudflare One pros

"Fortinet FortiMail is easy to use and the detection rate is very good."

"FortiMail possesses notable strengths, and one key feature is its store-and-forward concept."

"We're happy with things."

"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."

"After three months of evaluating FortiMail, it has exceeded our expectations and we will definitely continue using it."

"The anti-spam features are valuable."

"The stability and performance of the solution have been great, and we have not had any problems since we have been using it."

"The most valuable features are the endpoint defense features, it is very secure."

More Fortinet FortiMail pros

"Its administration console is very easy to use. The administration console is absolutely important because you interact with the platform through it."

"We like the content filtering and secure messaging features."

"The reviewer gave Mimecast Email Security a rating of 10 out of 10."

"In terms of efficacy, Proofpoint is better than Mimecast, though it's a little difficult to manage."

"It is our spam filter, phishing filter, and executive impersonation filter."

"Mimecast certainly helped my customers reduce phishing emails."

"Mimecast Advanced Email Security proves to be a useful tool, allowing me as security personnel to work in a more peaceful manner."

"It's really quite user-friendly. In terms of technical superiority and the product itself, there are no complaints. It is really cutting edge."

More Mimecast Advanced Email Security pros

Cons

"Our customers no longer use Cloudflare because its service is subpar."

"Cloudflare Zero Trust Platform needs to improve its documentation. It took time to do the implementation."

"They don't have a person to provide support for customers using the solution under their free plan."

"From a logging perspective, it is still a bit difficult to see exactly what users are being blocked with the current views."

"The initial onboarding was causing us some confusion."

"Cloudflare DDoS has poor technical support."

"Our subscription plan for the solution has a limitation of bot signatures."

"The response time for support must be reduced."

More Cloudflare One cons

"I have little to say about possible improvements, but the configuration for content blocking could be better. So, for example, if the email includes the line "You have a Bitcoin", I would like it to be easier to block it before it enters an inbox. Fortinet could maybe offer better or simpler help on how to do this properly."

"The security products stop their operations once the subscription period expires. It is a wrong policy. If I trust a product, it has to continue working even after expiry. It should have a grace period of 30, 40, or 60 days. We can extend the subscription during those days. In some places, subscription extensions can take up to six weeks. During the renewal process, the support offered by the company is very poor. It also reduces security. We pay for the expired period but do not get protection during those times. The user of Fortinet FortiMail should have a feature to see spam names."

"I would like it if the solution could be more affordable."

"High Availability needs improvement."

"The solution could be improved by providing a virtual machine facility with a complete set of options in the VM setup and by enhancing the clarity of the information supplied for content filtering."

"It is not easy to install."

"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 logging information is sometimes not clear or easy to understand."

More Fortinet FortiMail cons

"Lately, Mimecast's outbound mail servers have been regularly blocklisted by spam filters. That didn't happen a few years back, but it seems to be a more frequent problem these days. When a server is blocklisted, it means all of my outgoing mail ends up in the recipient's junk mail. That affects my reputation and business confidence."

"Mimecast Email Security is somewhat expensive compared to the competition in the Indian market, and the local presence is lacking as they do not have a local representative currently."

"The differentiation between bulk spam mail and campaign-related mail could be improved."

"External security features need improvement."

"The filtering needs more flexibility."

"Mimecast need to ensure that the body text format is correctly handled and that images are properly embedded in the body text."

"The solution's console interface was recently changed for the admins, but the previous one was much better because we could open tabs on it."

"The product's interface could be improved to be more user-friendly."

More Mimecast Advanced Email Security cons

Pricing and Cost Advice

"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 pricing is somewhere in the middle. I would rate the pricing a seven out of ten."

"Cloudflare Zero Trust Platform's pricing is good."

"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 solution is not that expensive."

"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."

"The solution's pricing lacks transparency."

"The prices are slightly expensive."

"It is a fairly priced product, considering what it does. The product offers good value for the money users spend on it."

"The price is acceptable for the support license it includes."

"FortiMail has extra charges for installation, configuration, and project management."

"I find Fortinet FortiMail pricing reasonable. There's no additional cost apart from its standard licensing fees."

"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."

"This is a good solution and value for the money."

"The solution is reasonably priced compared to one of its competitors."

"Fortinet FortiMail has an annual license agreement."

More Fortinet FortiMail pricing and cost advice

"I'm always going to say the price needs to be lower, but it's reasonable."

"The product price is moderate. I rate the pricing a five out of ten."

"The licensing costs are per-user for the product that you get with them."

"The price of Mimecast Mailbox Continuity is expensive."

"The solution is expensive."

"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."

"The product has good pricing in terms of return on investment."

"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."

More Mimecast Advanced Email Security pricing and cost advice

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Top Industries

By visitors reading reviews

Construction Company

19%

Comms Service Provider

10%

Financial Services Firm

Manufacturing Company

Financial Services Firm

Construction Company

Manufacturing Company

Computer Software Company

11%

Financial Services Firm

Construction Company

Outsourcing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	1
Large Enterprise	12

By reviewers
Company Size	Count
Small Business	32
Midsize Enterprise	23
Large Enterprise	15

By reviewers
Company Size	Count
Small Business	19
Midsize Enterprise	12
Large Enterprise	18

Questions from the Community

What is your experience regarding pricing and costs for Cloudflare Zero Trust Platform?

Pricing is competitive. Akamai is more expensive, in my view.

See all answers

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...

See all answers

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...

See all answers

What is your experience regarding pricing and costs for Fortinet FortiMail?

The setup cost is a little bit costly.

See all answers

What needs improvement with Fortinet FortiMail?

I think they should improve Fortinet FortiMail on-premises by enhancing its user interface. Additional features they ...

See all answers

What is your primary use case for Fortinet FortiMail?

I do have a partnership with Fortinet. I have been both a partner and reseller.

See all answers

What is your experience regarding pricing and costs for Mimecast Email Security with Targeted Threat Protection?

Do you know anything about the pricing and cost of the Mimecast Email Security?

See all answers

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...

See all answers

What is your primary use case for Mimecast Email Security with Targeted Threat Protection?

I have been working with Mimecast Email Security.

See all answers

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Twingate vs Cloudflare One

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Fortinet FortiGate vs Cloudflare One

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Compared 7% of the time

Proofpoint Email Protection vs Fortinet FortiMail

Compared 6% of the time

Microsoft Exchange Online Protection (EOP) vs Fortinet FortiMail

Compared 5% of the time

Microsoft Defender for Office 365 vs Fortinet FortiMail

Compared 5% of the time

Perception Point Advanced Email Security vs Fortinet FortiMail

Compared 4% of the time

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Check Point Email Security (formerly Harmony Email & Collaboration) vs Mimecast Advanced Email Security

Compared 16% of the time

Proofpoint Email Protection vs Mimecast Advanced Email Security

Compared 10% of the time

Microsoft Defender for Office 365 vs Mimecast Advanced Email Security

Compared 7% of the time

Barracuda Email Protection vs Mimecast Advanced Email Security

Compared 6% of the time

Microsoft Exchange Online Protection (EOP) vs Mimecast Advanced Email Security

Compared 2% of the time

More Mimecast Advanced Email Security Competitors

Product Reports

Buyer's Guide

Cloudflare One

July 2026

Download Cloudflare One product report

Buyer's Guide

Fortinet FortiMail

July 2026

Download Fortinet FortiMail product report

Buyer's Guide

Mimecast Advanced Email Security

June 2026

Download Mimecast Advanced Email Security product report

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

Cloudflare One is a comprehensive platform for security, performance, and connectivity. It provides features like rate limiting, DDoS protection, and application access, tailored to enhance user experience while securing internet access and accelerating communications.

Designed to integrate security measures with ease of use and scalability, Cloudflare One offers a secure web gateway and zero trust network access. These features ensure seamless setup and operation, making connectivity reliable and protected. Users appreciate its integrated console, intuitive interface, and the ability to manage risk effectively. It offers straightforward deployment, improves latency, and boasts cost-effectiveness. While its onboarding process and documentation need enhancement, its value in content delivery and application shielding is notable. Despite challenges in integrating Cloudflare Access with existing VPNs and the need for better automation and support, it remains vital for DNS and infrastructure protection.

What features make Cloudflare One stand out?

Rate Limiting: Controls the traffic rate to prevent abuse.
DDoS Protection: Shields applications from distributed denial-of-service attacks.
Secure Web Gateway: Provides secure internet access with seamless operation.
Zero Trust Network Access: Ensures secure, application-based connectivity without relying on traditional VPNs.
Access for Connectivity: Facilitates access to internal applications securely.

What benefits should users look for in reviews?

Security: Robust measures for DNS and browsing protection.
Performance: Enhanced site accessibility and communication speed.
Cost-Effectiveness: Offers competitive pricing for its features.
Ease of Deployment: Straightforward and efficient setup process.

In industries like finance, retail, and technology, Cloudflare One is crucial for enabling secure remote access and protecting web applications against dynamic threats. It supports compliance access policies and enhances content delivery, playing a key role in safeguarding digital infrastructure.

Cloudflare

Fortinet FortiMail is a robust email security platform offering anti-spam, antivirus, and anti-phishing capabilities. It integrates with Fortinet products to ensure seamless protection against email threats in on-premises, cloud, and hybrid environments, enhancing secure communication for businesses.

Fortinet FortiMail is designed to protect against a range of email threats including spam, phishing, and malware, ensuring email safety for organizations. It operates as both a gateway and server, allowing for secure filtering of incoming and outgoing emails. The integration with Fortinet’s suite of security tools provides a comprehensive approach to managing threats effectively, while user-friendly interfaces and detailed reporting systems aid in threat monitoring and management. Frequent updates are implemented, though scalability and web console enhancements are necessary for improved performance.

What are the key features of Fortinet FortiMail?

Anti-Spam: Provides reliable filtering to block unwanted emails.
Antivirus: Ensures protection against harmful viruses.
Anti-Phishing: Prevents phishing attempts through advanced detection.
Sandboxing: Enhances threat detection to manage email security efficiently.
Integration: Seamlessly works with other Fortinet products for unified security.

What benefits should users expect from Fortinet FortiMail?

Comprehensive Security: Offers robust protection against multiple email threats.
Ease of Use: Features a user-friendly interface for better accessibility.
Detailed Reporting: Provides insights into threat management activities.
Reliable Performance: Delivers consistent updates for maintaining email protection.

Fortinet FortiMail is implemented by companies across industries seeking to secure their email communications. In healthcare, it protects sensitive patient information, while in finance, it safeguards transactional data against phishing attacks. Retailers utilize FortiMail to prevent data breaches from fraudulent emails, demonstrating its versatility in diverse sectors.

Fortinet

Mimecast Advanced Email Security offers advanced features like sandboxing, email archiving, and phishing protection. It's known for integration with Microsoft 365 and user-friendly admin management, making it a robust choice for secure communications.

Focused on safeguarding emails, Mimecast Advanced Email Security integrates seamlessly with Microsoft 365, providing features such as sandboxing, spam filtering, and email archiving. It delivers comprehensive protection against phishing, identity threats, and impersonation attempts. Administrators benefit from the ability to monitor external communications and customize configurations, enhancing email security. Users appreciate the intuitive admin console and responsive support team. Although it faces challenges in threat detection rates and administration complexity, its capabilities in email monitoring, spam filtering, and URL inspection remain valued by enterprises seeking reliable email security that supports compliance needs.

What key features should users explore?

Sandboxing: Analyzes attachments in a secure environment to detect threats.
Email Archiving: Provides secure long-term storage of emails for compliance.
Spam Filtering: Prevents unsolicited emails from clogging the inbox.
URL Inspection: Checks links in emails for malicious content.
Phishing Protection: Guards against deceptive tactics to protect sensitive data.

What benefits can impact ROI?

Regulatory Compliance: Facilitates adherence to standards such as HIPAA.
Integration: Enhances existing systems with seamless Microsoft 365 integration.
Support: Offers a responsive support team to resolve issues promptly.
Email Security: Improves threat prevention with effective spam and phishing protections.

Mimecast Advanced Email Security is implemented across industries to protect against email threats like phishing, spam, and malicious attachments. It serves as both a gateway and an archiving tool, supporting compliance in healthcare and finance by offering features like URL protection and data loss prevention. Enterprises leverage its capabilities to secure inbound and outbound communications effectively.

Mimecast

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 Proofpoint, Microsoft, Check Point Software Technologies and others in Email Security. Updated: June 2026.

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We monitor all Email Security reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.