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
6.3
Proofpoint Email Protection offers strong phishing defense, significant ROI, but faces navigation challenges impacting operational efficiency.
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
The ideal situation would be to have all these portals combined into one unified dashboard.
Information Security Architect at Loews Hotels
 

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
7.0
Proofpoint Email Protection customer service is praised for responsiveness and expertise but needs improvement in documentation and lower-tier support.
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
I rate customer support a three out of ten mainly because of the phishing attacks that are getting through.
Information Security Architect at Loews Hotels
Sometimes I get some really great responses and analysts, but sometimes when their cloud services have a failure, they are slow to respond and tell me about it, though they have been improving.
Consultant at Exelixis Inc
 

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 is praised for scalability due to its cloud-based design, benefiting large organizations despite cost constraints.
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
Proofpoint Email Protection is a scalable solution that very much fits our capacity requirements.
Consultant at Exelixis Inc
 

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
8.1
Proofpoint Email Protection is highly stable, reliable, and efficient, consistently earning high user ratings despite occasional server 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
When evaluating the stability of Proofpoint Email Protection in regards to downtime, bugs, and glitches, it comes and goes in waves.
Consultant at Exelixis Inc
 

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 integration, setup complexity, high costs, and needs enhancements in detection, support, and features.
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
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
Proofpoint Email Protection can improve in how it analyzes alerts by using more AI within its product suite to eliminate repeat alerts, such as filtering down the same attack to generate only one alert.
Information Security Architect at Loews Hotels
 

Setup Cost

Mimecast Email Security is often seen as costly due to user-based licensing and added fees, despite potential discounts.
Proofpoint Email Protection pricing is considered high but offers value with no extra fees beyond the subscription cost.
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 anti-spam, phishing prevention, AI detection, and integrates with Office 365 for robust, affordable 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 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
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
 

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
31
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
6.9
Number of Reviews
55
Ranking in other categories
Email Security (2nd), Advanced Threat Protection (ATP) (4th), Digital Risk Protection (3rd)
 

Mindshare comparison

As of January 2026, in the Secure Email Gateway (SEG) category, the mindshare of Mimecast Email Security is 14.4%, up from 12.5% compared to the previous year. The mindshare of Proofpoint Email Protection is 20.3%, up from 20.2% 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 Protection20.3%
Mimecast Email Security14.4%
Other65.3%
Secure Email Gateway (SEG)
 

Featured Reviews

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.
Steve Bradbury - PeerSpot reviewer
Consultant at Exelixis Inc
Email defenses have blocked advanced threats and provide deep visibility into risky users
The areas that have room for improvement in Proofpoint Email Protection include their cost of ownership, which is fairly high. To manage and run all their products, I have to list and manage administrators in seven or eight different places. That is too many places to keep track of since for this tool I have to go to one location, and for another tool I have to go to a different location. They need to simplify the administration management of administrators and consolidate that into one place for all their products. Access to all the different products is very scattered. For some products I go to one URL, and for different products I go to a different URL. They have a threat URL that has most of their products in it, but not all. They need to simplify the interface to show all the products I have access to in one location.
report
Use our free recommendation engine to learn which Secure Email Gateway (SEG) solutions are best for your needs.
880,901 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
8%
Manufacturing Company
6%
Comms Service Provider
5%
Financial Services Firm
11%
Computer Software Company
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 Enterprise14
Large Enterprise18
 

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?
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...
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.
880,901 professionals have used our research since 2012.