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Mimecast Email Security vs Sophos Email comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on May 21, 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
5.5
Users have mixed ROI views on Mimecast Email Security, noting its effectiveness against threats but questioning cost-efficiency.
Sentiment score
6.4
Sophos Email boosts ROI by improving efficiency, cutting costs, reducing spam, and enhancing security, proving its investment value.
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
5.6
Mimecast Email Security support is helpful but has mixed reviews due to delays and reliance on indirect solutions.
Sentiment score
6.9
Sophos Email support has mixed reviews, with users noting variability in response times and real-time availability issues.
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
After-sales support for Sophos is very good.
Founder at Computech infosysetm
The technical support from Sophos Email deserves a rating of 10 out of 10.
Technical Head at a tech services company with 51-200 employees
When I reported a problem with our firewall, they acted promptly and delivered another piece of equipment.
Network and Infrastructure Manager at Sonysugar
 

Scalability Issues

Sentiment score
7.0
Mimecast Email Security is praised for adaptability and scalability, supporting various industries despite minor feature challenges.
Sentiment score
7.5
Sophos Email is scalable for businesses, but some users mention licensing costs and reporting complexities as limitations.
If Mimecast Email Security introduces API solutions, it will dominate the market.
Email Security Engineer at Logic Infosecurity
 

Stability Issues

Sentiment score
7.5
Mimecast Email Security is reliable and stable, with minimal glitches, occasional delays, and high user ratings for performance.
Sentiment score
7.9
Sophos Email is praised for its stability, reliability, and performance in data management, essential for email management.
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

Mimecast Email Security needs improvements in pricing, detection, complexity, user interface, support, and reducing false positives and attachment issues.
Sophos Email struggles with support, security, and usability, needing improvements in setup, features, pricing, and system integration.
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
The main competitor for Sophos in the market is Palo Alto, which has reduced their price by more than 35 to 40%, making it a very challenging part to sell this product.
Founder at Computech infosysetm
Sophos Email does not work with split delivery.
Operations Technical Lead at IT Supporters
 

Setup Cost

Mimecast Email Security is often seen as costly due to user-based licensing and added fees, despite potential discounts.
Sophos Email offers flexible, affordable pricing with various subscription options, competitive market ratings, and justified protection costs.
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
Senior Tech. Lead at WE
Sophos Email pricing is a bit high, especially since I purchase through a partner, and they sell it at a higher price since they also seek to make a profit.
Network and Infrastructure Manager at Sonysugar
 

Valuable Features

Mimecast Email Security offers strong threat protection, easy setup, seamless Microsoft 365 integration, and excellent scalability and support.
Sophos Email provides robust security, seamless integration with cloud platforms, and simplifies management with advanced threat protection features.
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
It provides a defense layer for email protection, scanning every incoming and outbound email for malware and spam.
Operations Technical Lead at IT Supporters
Sophos already has Sandbox, and if any issues are identified, Sophos blocks that particular mail and site instantly, which is why customers are very happy and safe from other attacks.
Founder at Computech infosysetm
The spam reduction feature in Sophos Email provides comfort when using it.
Network and Infrastructure Manager at Sonysugar
 

Categories and Ranking

Mimecast Email Security
Ranking in Office 365 Protection
3rd
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
32
Ranking in other categories
Secure Email Gateway (SEG) (4th)
Sophos Email
Ranking in Office 365 Protection
1st
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
34
Ranking in other categories
Email Security (10th)
 

Mindshare comparison

As of January 2026, in the Office 365 Protection category, the mindshare of Mimecast Email Security is 22.2%, up from 15.9% compared to the previous year. The mindshare of Sophos Email is 10.0%, down from 19.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Office 365 Protection Market Share Distribution
ProductMarket Share (%)
Sophos Email10.0%
Mimecast Email Security22.2%
Other67.8%
Office 365 Protection
 

Featured Reviews

RP
Senior Tech. Lead at WE
Block significant threats with enhanced phishing prevention
In terms of efficacy, Proofpoint is better than Mimecast, though it's a little difficult to manage. A distinct advantage of Mimecast is its ability to block phishing and impostor attacks, which are significant threats currently. Security is a major feature where email security tools like Mimecast have delivered value by identifying and preventing phishing emails.
Kalyan  Chowdhury - PeerSpot reviewer
Founder at Computech infosysetm
Stronger email and mobile security has protected users from ransomware and simplified management
Price is obviously a challenging part, and I think it is the biggest problem we have suffered from over the last two or three years due to a 7 to 8% hike per year, twice a year, which is why we have some renewals on Sophos Email, Sophos XDR, EDR, and the firewall, but due to price hike, they are unable to renew it. The price is going to be very high. It would be better if Sophos can provide a more flexible pricing model for different types of businesses. Price could be lower. The main competitor for Sophos in the market is Palo Alto, which has reduced their price by more than 35 to 40%, making it a very challenging part to sell this product. Palo Alto provides the same functionality for email security, which adds to the challenge because the price is going very high.
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
8%
Manufacturing Company
7%
Comms Service Provider
5%
Manufacturing Company
11%
Computer Software Company
9%
Outsourcing Company
8%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise7
Large Enterprise11
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise3
Large Enterprise5
 

Questions from the Community

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.
What do you like most about Sophos Email?
The solution's identity proxy feature is very good and reliable.
What is your experience regarding pricing and costs for Sophos Email?
Regarding Sophos Email pricing, I would rate it between six or seven out of ten.
What needs improvement with Sophos Email?
Price is obviously a challenging part, and I think it is the biggest problem we have suffered from over the last two or three years due to a 7 to 8% hike per year, twice a year, which is why we hav...
 

Also Known As

Mimecast Email Security with Targeted Threat Protection
Sophos Email Security
 

Overview

 

Sample Customers

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Del Monte Foods, Terra Verde, spicerhaart, RIVERLITE, Dataprise, SureBridge, Reed's School, Sayfol International School
Find out what your peers are saying about Mimecast Email Security vs. Sophos Email and other solutions. Updated: November 2025.
879,711 professionals have used our research since 2012.