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Darktrace vs Mimecast Email Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 2, 2025

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
6.3
Darktrace users experience substantial returns through threat prevention and reduced downtime, despite deployment challenges and difficulty measuring returns.
Sentiment score
5.5
Users have mixed ROI views on Mimecast Email Security, noting its effectiveness against threats but questioning cost-efficiency.
Other NDR solutions provide virtual appliances that can be deployed on virtualization servers to get up and running quickly.
Technical Consultant - Unix Platform Services at BITS AND BYTE IT CONSULTING PVT LTD
Using this solution provides financial benefits by securing from server attacks, which offers indirect savings.
Systems Specialist/ Administrator at ALFA International Company Limited.
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
7.6
Darktrace's customer service is praised for responsiveness and efficiency, though some suggest improvements for complex issues.
Sentiment score
5.6
Mimecast Email Security support is helpful but has mixed reviews due to delays and reliance on indirect solutions.
The technical support from Darktrace is of high quality.
Network & Security Section Head/Digital Transformation at City Edge
Darktrace provides excellent technical support with a monthly meeting to review platform incidents, ensuring the system functions as expected.
Head of Technology Operations at Pobl Group
The challenge lies in waiting for a response after logging a ticket.
Group Cybersecurity Administrator at Tharisa
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
Darktrace is praised for its scalability, supporting diverse user bases and integrating well with existing infrastructures.
Sentiment score
7.0
Mimecast Email Security is praised for adaptability and scalability, supporting various industries despite minor feature challenges.
Darktrace has high scalability, and I would rate it a nine out of ten.
Network & Security Section Head/Digital Transformation at City Edge
Since it's cloud-based, it expands easily.
Head of Technology Operations at Pobl Group
There is still a gap in terms of storage, and we are trying to figure out how to increase that capacity for regulated environments, which require data retention for 5 to 6 years.
Technical Consultant - Unix Platform Services at BITS AND BYTE IT CONSULTING PVT LTD
If Mimecast Email Security introduces API solutions, it will dominate the market.
Email Security Engineer at Logic Infosecurity
 

Stability Issues

Sentiment score
8.5
Darktrace is highly rated for stability and reliability, with effective monitoring and an intuitive interface despite occasional traffic impacts.
Sentiment score
7.5
Mimecast Email Security is reliable and stable, with minimal glitches, occasional delays, and high user ratings for performance.
The stability of Darktrace is excellent, rated ten out of ten.
Head of Technology Operations at Pobl Group
The appliance itself has never let me down.
Group Cybersecurity Administrator at Tharisa
For stability, I would rate Darktrace an eight out of ten.
Security Analyst at a healthcare company with 10,001+ 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
 

Room For Improvement

Darktrace needs improved integration, automation, usability, pricing, support, and clarity, plus better endpoint protection and third-party tool integration.
Mimecast Email Security needs improvements in pricing, detection, complexity, user interface, support, and reducing false positives and attachment issues.
There is no dedicated salesperson in Egypt, and having one would help to improve focus on this market.
Solution Architect at a tech services company with 51-200 employees
They say they can integrate with most firewalls, but when we did an integration with Meraki MX firewalls, that integration didn't work and still doesn't work to this day.
Security Analyst at a healthcare company with 10,001+ employees
We need Darktrace on each branch to get the data out, and I suggest having some kind of a centralized product that gets data from multiple sources to aggregate and provide the data.
Technical Consultant - Unix Platform Services at BITS AND BYTE IT CONSULTING PVT LTD
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

Darktrace is costly yet valued for advanced features, offering flexible module selection with negotiable discounts and yearly contracts.
Mimecast Email Security is often seen as costly due to user-based licensing and added fees, despite potential discounts.
The product is considered expensive compared to others.
Solution Architect at a tech services company with 51-200 employees
The pricing is costly in USD, and they charge based on device counts.
Group Cybersecurity Administrator at Tharisa
The licensing cost is approximately eight dollars a year.
Security Information & Incident Analyst at a financial services firm with 1,001-5,000 employees
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
Senior Tech. Lead at WE
 

Valuable Features

Darktrace offers AI-driven threat detection, real-time monitoring, and autonomous response with scalability and ease of integration for enhanced security.
Mimecast Email Security offers strong threat protection, easy setup, seamless Microsoft 365 integration, and excellent scalability and support.
It is capable of responding to lateral movement and ransomware deployment within environments where there is data exfiltration.
Group Cybersecurity Administrator at Tharisa
I do not need to manually process incidents as Darktrace provides an incident summary, potential detection paths, and other details, all exportable with just a click.
Security Information & Incident Analyst at a financial services firm with 1,001-5,000 employees
If I am in a data center where I don't have layer two, it becomes an issue because the autonomous response is reliant on sending spoofed TCP resets to my core switch to block traffic, which is a major issue.
Security Analyst at a healthcare company with 10,001+ 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

Darktrace
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
84
Ranking in other categories
Email Security (9th), Intrusion Detection and Prevention Software (IDPS) (2nd), Network Traffic Analysis (NTA) (1st), Network Detection and Response (NDR) (1st), Extended Detection and Response (XDR) (6th), Cloud Security Posture Management (CSPM) (13th), Cloud-Native Application Protection Platforms (CNAPP) (11th), Attack Surface Management (ASM) (4th), AI-Powered Cybersecurity Platforms (4th), AI Observability (8th)
Mimecast Email Security
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
31
Ranking in other categories
Office 365 Protection (3rd), Secure Email Gateway (SEG) (4th)
 

Mindshare comparison

While both are Messaging and Collaboration solutions, they serve different purposes. Darktrace is designed for Network Detection and Response (NDR) and holds a mindshare of 18.0%, down 25.2% compared to last year.
Mimecast Email Security, on the other hand, focuses on Secure Email Gateway (SEG), holds 14.4% mindshare, up 12.5% since last year.
Network Detection and Response (NDR) Market Share Distribution
ProductMarket Share (%)
Darktrace18.0%
Vectra AI13.3%
ExtraHop Reveal(x)7.0%
Other61.7%
Network Detection and Response (NDR)
Secure Email Gateway (SEG) Market Share Distribution
ProductMarket Share (%)
Mimecast Email Security14.4%
Microsoft Defender for Office 36524.2%
Proofpoint Email Protection20.3%
Other41.099999999999994%
Secure Email Gateway (SEG)
 

Featured Reviews

AM
Technical Consultant - Unix Platform Services at BITS AND BYTE IT CONSULTING PVT LTD
Consistent threat hunting and anomaly detection deliver valuable insights for network security management
In terms of improvement for Darktrace, pricing is the main concern. Pricing bothers me and this is one of the major factors when choosing a solution. When we get feedback from customers, that's the only felt need. When we factor in Darktrace, we do it only limited. We put it on where the perimeters and connections are, but still, some gray areas are left out, especially if we have multiple branches. We need Darktrace on each branch to get the data out, and I suggest having some kind of a centralized product that gets data from multiple sources to aggregate and provide the data.
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 Network Detection and Response (NDR) solutions are best for your needs.
881,114 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
11%
Manufacturing Company
9%
Financial Services Firm
8%
Government
7%
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 Business45
Midsize Enterprise19
Large Enterprise29
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise7
Large Enterprise11
 

Questions from the Community

How does Crowdstrike Falcon compare with Darktrace?
Both of these products perform similarly and have many outstanding attributes. CrowdStrike Falcon offers an amazing user interface that makes setup easy and seamless. CrowdStrike Falcon offers a cl...
Which is better - SentinelOne or Darktrace?
Which solution is better depends on which is more suitable specifically for your company. Darktrace, for example, is meant for smaller to medium-sized businesses. It is also a good option for organ...
What do you like most about Darktrace?
A very useful feature in Darktrace for real-time threat analysis is the packet inspection that analyzes the packet traffic in real time.
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
 

Overview

 

Sample Customers

Irwin Mitchell, Open Energi, Wellcome Trust, FirstGroup plc, Virgin Trains, Drax, QUI! Group, DNK, CreaCard, Macrosynergy, Sisley, William Hill plc, Toyota Canada, Royal British Legion, Vitol, Allianz, KKR, AIRBUS, dpd, Billabong, Mclaren Group.
Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Find out what your peers are saying about Darktrace vs. Mimecast Email Security and other solutions. Updated: January 2024.
881,114 professionals have used our research since 2012.