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Fortinet FortiMail Cloud vs Mimecast Email and Collaboration Threat Protection comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 11, 2026

Review summaries and opinions

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

ROI

Sentiment score
7.0
ROI from Fortinet FortiMail Cloud is hard to quantify, though enhanced security and decreased incidents indicate value satisfaction.
Sentiment score
5.5
Mimecast Advanced Email Security is valued for robust protection despite challenges in quantifying ROI and gaps in support and stability.
Return on investment in the time is difficult to quantify, however, the return on investment for us was achieved since we did not have similar incidents again in our environment.
Director at a tech services company with 11-50 employees
There is definitely a return on investment when using Mimecast, as it blocks phishing emails, reducing the risk of significant financial losses.
Senior Tech. Lead at WE
 

Customer Service

Sentiment score
6.8
Fortinet FortiMail Cloud support is generally praised for its responsiveness and knowledge, despite some concerns about occasional delays.
Sentiment score
5.6
Mimecast Advanced Email Security's technical support receives varied feedback, highlighting promptness, knowledge, but some issues with responsiveness and personalization.
As far as Fortinet secure support, I will rate them nine out of ten.
Director at a tech services company with 11-50 employees
I would rate the technical support from Fortinet as ten out of ten.
Senior Network and Security Engineer at Symbol Technologies PLC
Fortinet's support is really good.
Cyber Security Engineer at a financial services firm with 501-1,000 employees
Support personnel are hesitant to engage in remote sessions, preferring to share documentation via email.
Senior Tech. Lead at WE
Mimecast technical support is generally quite good.
Information Security Analyst at Enfield Central Library
I would rate my experience with technical support of Mimecast Email Security between seven and eight out of ten for their support.
Email Security Engineer at Logic Infosecurity
 

Scalability Issues

Sentiment score
7.6
Fortinet FortiMail Cloud offers scalable user expansion, though experiences vary due to subscription and deployment choices impacting flexibility.
Sentiment score
7.0
Mimecast Advanced Email Security is highly adaptable, scalable, and rated highly for flexibility and user handling across diverse sectors.
It is highly scalable, so I can give it a ten out of ten on that.
Director at a tech services company with 11-50 employees
If Mimecast Email Security introduces API solutions, it will dominate the market.
Email Security Engineer at Logic Infosecurity
From what I've seen from the MSP, it seems quite complicated to manage the configuration itself.
IT Manager at a logistics company with 201-500 employees
 

Stability Issues

Sentiment score
7.0
Fortinet FortiMail Cloud is highly stable with minimal downtime, consistently reliable performance, and high user satisfaction ratings.
Sentiment score
7.5
Mimecast Advanced Email Security is stable and reliable, with occasional login issues and rare performance interruptions reported by users.
I would give it a high stability rating of nine out of ten.
Director at a tech services company with 11-50 employees
They confirm it's a good solution where only one or two rare emails get through, while the rest are properly blocked without any issues.
Email Security Engineer at Logic Infosecurity
The issues we did have were causing quite a lot of problems.
IT Manager at a logistics company with 201-500 employees
 

Room For Improvement

Fortinet FortiMail Cloud requires improved filtering, encryption, UI simplicity, and competitive pricing, while lacking sorting, archiving, and AI features.
Mimecast Advanced Email Security is criticized for complex installation, costly pricing, and numerous functionality and support issues.
If we go for FortiMail Cloud and have a separate endpoint security solution, there are two agents that have to sit on a customer endpoint.
Director at a tech services company with 11-50 employees
It would be beneficial to enhance flexibility for better adaptation to various customer environments.
Owner at wct it-solutions GmbH
We can't import files into the Fortinet FortiMail Cloud sensors.
Senior Network Security Engineer at Vibs
A lot of emails were missed despite being known samples.
Senior Tech. Lead at WE
Mimecast Email Security is somewhat expensive compared to the competition in the Indian market.
Co-Founder & VP-Sales at QuantumShield Technologies LLP
We discussed the phishing aspect, the DNS system, and the key rotation.
Senior Security Engineer at ManpowerGroup
 

Setup Cost

Fortinet FortiMail Cloud offers competitive subscription pricing, with annual licenses around $4,000, varying by organizational needs.
Enterprise buyers view Mimecast's email security as costly, with subscription fees per user and competitors like Microsoft Defender more affordable.
The price is relatively expensive.
Senior Network and Security Engineer at Symbol Technologies PLC
The pricing for Fortinet FortiMail Cloud seems a bit high, although it is considered acceptable for the product's value.
Owner at wct it-solutions GmbH
Cost-wise, it's a bit expensive, but it's totally worth it.
Senior Network Security Engineer at Vibs
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
Senior Tech. Lead at WE
Regarding the price, I think that in terms of similar products, it is pretty much in the same line, so I think it's reasonable.
IT Manager at a logistics company with 201-500 employees
 

Valuable Features

Fortinet FortiMail Cloud offers robust email protection with advanced threat detection, seamless integration, and comprehensive management features.
Mimecast Advanced Email Security provides comprehensive protection, easy integration, user-friendly setup, and valuable insights for enhanced email security.
FortiMail's integration with other Fortinet solutions enhances the security part of the organization.
Cyber Security Engineer at a financial services firm with 501-1,000 employees
Fortinet FortiMail Cloud has had a positive effect on our organization since we can classify each email coming to our organization.
Consultant for the Chairman at Financial Literacy Knowledge Hub
The return on investment for us was achieved since we did not have similar incidents again in our environment.
Director at a tech services company with 11-50 employees
A distinct advantage of Mimecast is its ability to block phishing and impostor attacks, which are significant threats currently.
Senior Tech. Lead at WE
One of the most useful features is the threat remediation module, which can be used to remove malicious emails that may have been delivered or manually remove them.
Information Security Analyst at Enfield Central Library
Mimecast Email Security includes the best gateway solution across all Cisco, Trend Micro, and other solutions.
Email Security Engineer at Logic Infosecurity
 

Categories and Ranking

Fortinet FortiMail Cloud
Ranking in Secure Email Gateway (SEG)
8th
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
24
Ranking in other categories
Cloud Email (5th)
Mimecast Email and Collabor...
Ranking in Secure Email Gateway (SEG)
4th
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
39
Ranking in other categories
Office 365 Protection (3rd)
 

Mindshare comparison

As of February 2026, in the Secure Email Gateway (SEG) category, the mindshare of Fortinet FortiMail Cloud is 4.1%, up from 3.9% compared to the previous year. The mindshare of Mimecast Email and Collaboration Threat Protection is 16.5%, up from 11.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Market Share Distribution
ProductMarket Share (%)
Mimecast Advanced Email Security16.5%
Fortinet FortiMail Cloud4.1%
Other79.4%
Secure Email Gateway (SEG)
 

Featured Reviews

HR
Senior Network Security Engineer at Vibs
Provides solid functionality and allows room for enhancing content management and support services
They can improve their CDR content profile and some anti-spam features. They don't have any direct script to run to add personalization, and we have to do it manually one by one. There are many tasks which we have to complete individually. We can't import files into the Fortinet FortiMail Cloud sensors. That's a drawback, as they need to provide a feature to import files. We can make the format, but we cannot import the file into Fortinet FortiMail Cloud. Additionally, in Fortinet FortiMail Cloud, not in FortiSandbox, they need to improve the block and allow list functionality to block URLs and allow specific types of URLs or regex.
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.
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Use our free recommendation engine to learn which Secure Email Gateway (SEG) solutions are best for your needs.
881,928 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
11%
University
7%
Financial Services Firm
7%
Healthcare Company
6%
Computer Software Company
14%
Financial Services Firm
8%
Manufacturing Company
6%
Comms Service Provider
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise8
Large Enterprise2
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise11
Large Enterprise13
 

Questions from the Community

What is your experience regarding pricing and costs for Fortinet FortiMail Cloud?
The price of Fortinet FortiMail Cloud in Egypt is very competitive against other products, including the setup cost and licensing of this solution.
What needs improvement with Fortinet FortiMail Cloud?
The improvement in Fortinet FortiMail Cloud can be made regarding the classification process itself because it has some false positives.
What is your primary use case for Fortinet FortiMail Cloud?
I have experience working with Fortinet FortiMail Cloud as a mail gateway, not a firewall, and we have been using it for about three or four years. I have worked with Fortinet FortiMail Cloud for t...
What do you like most about Mimecast Email Security with Targeted Threat Protection?
The interface of this solution is very easy to navigate and user-friendly. There is no delivery in email and other communications, making it reliable. The configuration is relatively easy.
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 worthwhile. Mimecast Email Security is somewhat expensive compared to the competi...
 

Also Known As

No data available
Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Mimecast Advanced Email Security
 

Overview

 

Sample Customers

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Find out what your peers are saying about Fortinet FortiMail Cloud vs. Mimecast Email and Collaboration Threat Protection and other solutions. Updated: December 2025.
881,928 professionals have used our research since 2012.