Try our new research platform with insights from 80,000+ expert users

Mimecast Email Security vs Proofpoint Email Protection comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 28, 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
6.5
Proofpoint Email Protection effectively reduced threats and costs, excelling in phishing defense, leading to significant efficiency improvements.
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
7.1
Proofpoint Email Protection's customer service is praised for responsiveness and expertise, though some report slow responses or portal 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
I am familiar with the granular policy control feature of Proofpoint Email Protection, and I find their support excellent for modifying those policies.
Senior Cybersecurity Specialist at a retailer with 10,001+ employees
 

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
Proofpoint Email Protection excels in adaptability and scalability, serving both small and large enterprises with ease and flexibility.
If Mimecast Email Security introduces API solutions, it will dominate the market.
Email Security Engineer at Logic Infosecurity
Proofpoint is scalable for multi-site organizations with thousands of users.
Products and solutions director at ITVikings
 

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
8.2
Users rate Proofpoint Email Protection highly for reliability and performance, with minor UI challenges and rare stability issues.
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.
Proofpoint Email Protection struggles with setup complexity, feature enhancements, pricing issues, and requires improved support and interface design.
Mimecast Email Security is somewhat expensive compared to the competition in the Indian market.
Co-Founder & VP-Sales at QuantumShield Technologies LLP
A lot of emails were missed despite being known samples.
Senior Tech. Lead at WE
Mimecast Email Security can be improved by adding some API integrations.
Email Security Engineer at Logic Infosecurity
Proofpoint could expand its phishing detection capabilities to improve its efficiency.
Products and solutions director at ITVikings
More security could be implemented.
Logistics Manager at a educational organization with 501-1,000 employees
I believe they still need to improve by consolidating some portals, as currently, you have to log in separately to a few of them.
Senior Cybersecurity Specialist at a retailer with 10,001+ employees
 

Setup Cost

Mimecast Email Security is often seen as costly due to user-based licensing and added fees, despite potential discounts.
Proofpoint Email Protection is considered costly, with pricing starting at $8 per user and varying by features.
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
Senior Tech. Lead at WE
Customers pay around $90,000 yearly for a 1,000-user organization, with the subscription license being the main expense, apart from implementation fees.
Products and solutions director at ITVikings
Additional costs do come in, but it enhances security.
Logistics Manager at a educational organization with 501-1,000 employees
 

Valuable Features

Mimecast Email Security offers strong threat protection, easy setup, seamless Microsoft 365 integration, and excellent scalability and support.
Proofpoint Email Protection offers advanced threat defense, user-friendly interface, and seamless Office 365 integration for comprehensive email security.
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
The most beneficial feature of Proofpoint Email Protection is mostly spam filtering; it was very efficient, and we were very happy with the functionality as only relevant emails were allowed for mailboxes.
Manager, IT Director at Cakmak Avukatlik Ortakligi
I appreciate that it's the industry leader, and its firewalling is very easy to manage and implement.
Senior Cybersecurity Specialist at a retailer with 10,001+ employees
The main feature I find most effective is that Proofpoint Email Protection scans emails and quarantines the doubtful ones.
Logistics Manager at a educational organization with 501-1,000 employees
 

Categories and Ranking

Mimecast Email Security
Ranking in Office 365 Protection
3rd
Ranking in Secure Email Gateway (SEG)
4th
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
32
Ranking in other categories
No ranking in other categories
Proofpoint Email Protection
Ranking in Office 365 Protection
2nd
Ranking in Secure Email Gateway (SEG)
2nd
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
53
Ranking in other categories
Email Security (3rd), Digital Risk Protection (3rd)
 

Mindshare comparison

As of December 2025, in the Secure Email Gateway (SEG) category, the mindshare of Mimecast Email Security is 12.7%, up from 12.6% compared to the previous year. The mindshare of Proofpoint Email Protection is 20.1%, up from 19.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Market Share Distribution
ProductMarket Share (%)
Proofpoint Email Protection20.1%
Mimecast Email Security12.7%
Other67.2%
Secure Email Gateway (SEG)
 

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.
reviewer2500410 - PeerSpot reviewer
Senior Cybersecurity Specialist at a retailer with 10,001+ employees
Has provided reliable threat detection and simplified policy management
I do not have experience with Microsoft Purview products, but I know some Proofpoint products. I apologize, I do not have experience with the Purview one, but I do know the Proofpoint products. I'm not sure about the features of the Purview one. Compared to other products, Proofpoint's real-time threat intelligence makes it less noisy. They collect and share threat information effectively, which benefits all customers. I have seen a lot of improvements in Proofpoint's reporting and analytics compared to earlier days. As a leader in the market, I find the pricing for Proofpoint Email Protection is a little high. Their licensing models vary, and even the premium model adequately supports awareness campaigning, so I find it acceptable. Normally, they sell their products through resellers, not directly through AWS Marketplace. For us, we are clients of Proofpoint. I rate Proofpoint Email Protection a nine out of ten.
report
Use our free recommendation engine to learn which Secure Email Gateway (SEG) solutions are best for your needs.
879,259 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
8%
Manufacturing Company
7%
Comms Service Provider
5%
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
8%
Government
6%
 

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 Business21
Midsize Enterprise13
Large Enterprise17
 

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 is your experience regarding pricing and costs for Proofpoint Email Protection?
In terms of pricing, it is okay compared to others. I would say it is normal. Additional costs do come in, but it enhances security.
What needs improvement with Proofpoint Email Protection?
I believe they still need to improve by consolidating some portals, as currently, you have to log in separately to a few of them.
 

Also Known As

Mimecast Email Security with Targeted Threat Protection
Proofpoint Enterprise Protection, Proofpoint Digital Protection
 

Overview

 

Sample Customers

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Blocket, University of Waterloo, Lincoln Memorial University, WellSpan Health, U-Haul, Carestream Health, Westinghouse
Find out what your peers are saying about Mimecast Email Security vs. Proofpoint Email Protection and other solutions. Updated: December 2025.
879,259 professionals have used our research since 2012.