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IRONSCALES vs Mimecast Email Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 5, 2024

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
6.9
Implementing IRONSCALES led to cost savings, improved cybersecurity, and enhanced security awareness with immediate efficiency and threat detection benefits.
Sentiment score
6.0
Mimecast Email Security effectively prevents phishing, enhancing security and providing significant protection despite challenges in quantifying ROI.
There is definitely a return on investment when using Mimecast, as it blocks phishing emails, reducing the risk of significant financial losses.
 

Customer Service

Sentiment score
8.0
IRONSCALES and its third-party resellers are praised for their quick, efficient issue resolution, excellent support, and high customer ratings.
Sentiment score
6.0
Mimecast Email Security's customer service is mixed, with responsiveness praised by some, but issues with waiting times noted by others.
I would rate their technical support as very good, as they respond promptly when my team opens a ticket.
Support personnel are hesitant to engage in remote sessions, preferring to share documentation via email.
Mimecast technical support is generally quite good.
I would rate my experience with technical support of Mimecast Email Security between seven and eight out of ten for their support.
 

Scalability Issues

Sentiment score
7.6
IRONSCALES is cloud-based, easily scalable for up to thousands of users, integrates with Office 365, and requires minimal maintenance.
Sentiment score
7.2
Mimecast Email Security is a scalable SaaS solution, praised for flexibility and effectiveness across various organization sizes and industries.
If Mimecast Email Security introduces API solutions, it will dominate the market.
 

Stability Issues

Sentiment score
8.3
IRONSCALES is highly stable and reliable, featuring minimal downtime, easy maintenance, and consistent uptime, ensuring smooth performance.
Sentiment score
7.5
Mimecast Email Security is generally stable and reliable, with rare bugs, occasional minor issues, and minimal downtime reported.
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.
 

Room For Improvement

IRONSCALES needs improved Google Suite integration, better UI, enhanced training and reporting, refined algorithms, and more comprehensive feature bundling.
Mimecast Email Security requires pricing, detection, user interface improvements, better support, and enhanced AI integration for smoother operations.
Though this isn't problematic for our users, the content could be updated more frequently.
A lot of emails were missed despite being known samples.
Mimecast Email Security can be improved by adding some API integrations.
We discussed the phishing aspect, the DNS system, and the key rotation.
 

Setup Cost

IRONSCALES pricing is considered high but cost-effective and valuable, offering significant security benefits and savings for varying budgets.
Mimecast Email Security offers comprehensive features but is considered premium, with variable pricing flexibility and additional support costs.
While I don't specifically oversee the pricing details, I understand that IRONSCALES is in the range of similar solutions while offering better results.
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
 

Valuable Features

IRONSCALES offers scalable AI-driven phishing detection, automated response, and integration with Microsoft 365, enhancing email security and user experience.
Mimecast Email Security offers strong threat protection, seamless Microsoft 365 integration, and user-friendly features for comprehensive email threat mitigation.
IRONSCALES excels at analyzing the intention, not just the content itself, but the sender's attempt to gain user attention.
A distinct advantage of Mimecast is its ability to block phishing and impostor attacks, which are significant threats currently.
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.
Mimecast Email Security includes the best gateway solution across all Cisco, Trend Micro, and other solutions.
 

Categories and Ranking

IRONSCALES
Ranking in Secure Email Gateway (SEG)
7th
Average Rating
9.2
Reviews Sentiment
7.3
Number of Reviews
14
Ranking in other categories
Email Security (17th), Advanced Threat Protection (ATP) (18th)
Mimecast Email Security
Ranking in Secure Email Gateway (SEG)
4th
Average Rating
8.0
Reviews Sentiment
6.1
Number of Reviews
31
Ranking in other categories
Office 365 Protection (3rd)
 

Mindshare comparison

As of October 2025, in the Secure Email Gateway (SEG) category, the mindshare of IRONSCALES is 4.0%, up from 3.3% compared to the previous year. The mindshare of Mimecast Email Security is 12.5%, down from 15.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Market Share Distribution
ProductMarket Share (%)
Mimecast Email Security12.5%
IRONSCALES4.0%
Other83.5%
Secure Email Gateway (SEG)
 

Q&A Highlights

DN
Jul 19, 2023
 

Featured Reviews

Hemeshen Govender - PeerSpot reviewer
Applies AI automation to clearly identify and stop a lot of phishing emails
The solution captures a bit more of the unknown, quantifies it, and applies intelligence to it to pick out and stop a lot of phishing emails that come through. The solution improved our response to phishing attempts. IRONSCALES has a virtual assistant and some AI intelligence that's applied to it. That was the main differentiator between IRONSCALES and Microsoft. The solution's AI automation clearly identifies phishing emails and gives you an overall indication of why it found the mail to be malicious. It does the whole analysis for you to see why the email was deemed a phishing email. The solution's response time is better than that of our previous tool. The solution's user interface is pretty straightforward and user-friendly.
Frank Rawson - PeerSpot reviewer
It gives clients peace of mind and helps them educate their users about threats
A few years ago, our team found the implementation to be somewhat challenging. It has gotten easier as we've grown more experienced. The difficulty depends on the expertise of the person doing it. I don't work with Mimecast every day, so it might be more difficult for me than it is for one of my techs who regularly does Mimecast implementations. It requires some specific in-depth product knowledge and an understanding of email solutions. The deployment time varies. In South Africa, it depends on who you use to deploy it. If you use one of Mimecast's local partners, it can take up to two weeks because of their process. However, it's only about four to eight hours of work. After deployment, there isn't much maintenance aside from supporting and educating your customers. Users require constant education on how to use the Mimecast client and release an email that has been blocked.
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Top Industries

By visitors reading reviews
Computer Software Company
18%
Manufacturing Company
7%
Healthcare Company
5%
University
5%
Computer Software Company
15%
Financial Services Firm
7%
Manufacturing Company
7%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise4
Large Enterprise3
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise7
Large Enterprise11
 

Questions from the Community

What do you like most about IRONSCALES?
The solution captures a bit more of the unknown, quantifies it, and applies intelligence to it to pick out and stop a lot of phishing emails that come through.
What is your experience regarding pricing and costs for IRONSCALES?
While I don't specifically oversee the pricing details, I understand that IRONSCALES is in the range of similar solutions while offering better results.
What needs improvement with IRONSCALES?
There are areas that could be improved with this product. Regarding the Spanish language awareness training, while they are producing good content, it appears to be initially produced in English an...
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?
Mimecast Email Security can be improved by adding some API integrations. Instead of remaining a traditional gateway, Mimecast Email Security needs to provide API solutions similar to Check Point.
 

Also Known As

No data available
Mimecast Email Security with Targeted Threat Protection
 

Overview

 

Sample Customers

Allegheny Millwork, Ayrshire College, Nium, Orris, Paramount School District, Pres Les, PRT Staffing, Recovery Unplugged, Telit, WebHelp
Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Find out what your peers are saying about IRONSCALES vs. Mimecast Email Security and other solutions. Updated: September 2025.
868,787 professionals have used our research since 2012.