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Mimecast Email and Collaboration Threat Protection vs Proofpoint Email Protection comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 11, 2026

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
Mimecast Advanced Email Security is valued for robust protection despite challenges in quantifying ROI and gaps in support and stability.
Sentiment score
6.2
Proofpoint Email Protection effectively reduces spam and phishing with superior threat detection, saving time despite some usability issues.
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
The time required for email investigations and responses has changed with Proofpoint Email Protection's visibility and automation.
Sr Security Engineer at a comms service provider with 201-500 employees
If you implement these kinds of solutions in your security stack, the first beneficial thing will be that you will not suffer any malware, and you will not face attacks, which ultimately leads to financial benefit.
Senior Security Engineer at DCIPHERS IT SOLUTIONS (P) LTD
 

Customer Service

Sentiment score
5.6
Mimecast Advanced Email Security's technical support receives varied feedback, highlighting promptness, knowledge, but some issues with responsiveness and personalization.
Sentiment score
7.0
Proofpoint Email Protection's customer service is generally praised for promptness and expertise, with some noting room for personalized improvements.
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 Advanced Email Security is highly adaptable, scalable, and rated highly for flexibility and user handling across diverse sectors.
Sentiment score
7.5
Proofpoint Email Protection is praised for scalable, adaptable solutions for diverse enterprises, despite some pricing concerns.
If Mimecast Email Security introduces API solutions, it will dominate the market.
Email Security Engineer at Logic Infosecurity
From what I've seen from the MSP, it seems quite complicated to manage the configuration itself.
IT Manager at a logistics company with 201-500 employees
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
Proofpoint Email Protection is quite scalable.
Threat Hunter at a manufacturing company with 10,001+ employees
 

Stability Issues

Sentiment score
7.5
Mimecast Advanced Email Security is stable and reliable, with occasional login issues and rare performance interruptions reported by users.
Sentiment score
8.1
Proofpoint Email Protection is highly stable and reliable, with minimal disruptions and rare downtime, despite some interface complaints.
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
The issues we did have were causing quite a lot of problems.
IT Manager at a logistics company with 201-500 employees
It was very rock solid.
Sr Security Engineer at a comms service provider with 201-500 employees
Sometimes, when creating connectors for implementing with Google Workspace, we encounter challenges because both Google Workspace and Proofpoint Email Protection do not have very good documentation on how to do this.
Senior Security Engineer at DCIPHERS IT SOLUTIONS (P) LTD
For example, if TRAP is not connected with Exchange Online or Exchange on-prem server, there is a problem for the company because if the solution is not connected, it will not work.
Senior Cyber Security Specialist at a consultancy with 10,001+ employees
 

Room For Improvement

Mimecast Advanced Email Security is criticized for complex installation, costly pricing, and numerous functionality and support issues.
Proofpoint Email Protection requires improved integration, AI enhancements, better support, and user-friendly features to enhance user experience and satisfaction.
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 older legacy user interface just took a little to work with, and the new unified interface, as it was able to do more and more of the functionality of the old one, the product just got easier and easier to use.
Sr Security Engineer at a comms service provider with 201-500 employees
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
 

Setup Cost

Enterprise buyers view Mimecast's email security as costly, with subscription fees per user and competitors like Microsoft Defender more affordable.
Proofpoint Email Protection is expensive but valued for strong threat protection, favored by large organizations despite higher costs.
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
Senior Tech. Lead at WE
Regarding the price, I think that in terms of similar products, it is pretty much in the same line, so I think it's reasonable.
IT Manager at a logistics company with 201-500 employees
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
Given my other experience with other vendors, I think they are a bit on the high end and a bit on the pricey end for the email security functionality that we were using.
Sr Security Engineer at a comms service provider with 201-500 employees
Additional costs do come in, but it enhances security.
Logistics Manager at a educational organization with 501-1,000 employees
 

Valuable Features

Mimecast Advanced Email Security provides comprehensive protection, easy integration, user-friendly setup, and valuable insights for enhanced email security.
Proofpoint Email Protection offers advanced spam and threat blocking, user-friendly interface, real-time screening, and strong Office 365 integration.
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 and Collabor...
Ranking in Office 365 Protection
3rd
Ranking in Secure Email Gateway (SEG)
4th
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
39
Ranking in other categories
No ranking in other categories
Proofpoint Email Protection
Ranking in Office 365 Protection
1st
Ranking in Secure Email Gateway (SEG)
2nd
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
61
Ranking in other categories
Email Security (2nd), Advanced Threat Protection (ATP) (4th), Digital Risk Protection (3rd)
 

Mindshare comparison

As of February 2026, in the Secure Email Gateway (SEG) category, the mindshare of Mimecast Email and Collaboration Threat Protection is 16.5%, up from 11.6% compared to the previous year. The mindshare of Proofpoint Email Protection is 20.9%, up from 21.1% 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 Protection20.9%
Mimecast Advanced Email Security16.5%
Other62.6%
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.
IS
Threat Hunter at a manufacturing company with 10,001+ employees
Email protection has reduced phishing workload and keeps unwanted messages out of inboxes
A few things about how Proofpoint Email Protection can be improved include implementing artificial intelligence within their platform to start really understanding the organization that is using their product, what sort of emails they are expecting and if the emails that are being expected should be let in and if the emails that are not being expected should not be let in. I'll give you a further example for this. If someone just tries to send an email from a Gmail address, which is a free public service email service provider, then because anyone in the world can create a Gmail account, I think it is nice and good for Proofpoint Email Protection to actually first check and do a reality check if we have received an email from this address and look at the intent of the email to really see what the email is trying to do and then classify based on that. I still see there is a lack. Hence why I started this conversation with AI and hoping that Proofpoint Email Protection will bring AI in and to really start analyzing these emails, the intent, and whether they really fit the customer organization. We are a manufacturing company, so whether it really fits that profile. I would say if we can get a better user experience from Proofpoint Email Protection products, that would be good. For example, other service providers that provide secure email gateway have the functionality where you can split promotional and bulk email and have them sent to a separate folder. I think if we can have that sort of feature, that would be great where Proofpoint Email Protection just keeps the important emails in the inbox folder and move everything else that is not really business related into a promotional, spam, bulk folder. This is an improvement that I would really like to see. I give it an eight because I am expecting a lot more from Proofpoint Email Protection, more automations, more understanding of who their customer is, what sort of business they do, and what sort of email they are supposed to be receiving and letting through. I think the day when I really have only 1% of work to do and 99% is automated by whatever automation services Proofpoint Email Protection uses would be ideal. I think I have covered any other improvements needed for Proofpoint Email Protection pretty well right from AI to splitting emails based on priorities. I think I have given some pretty broad and good examples.
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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
10%
Manufacturing Company
9%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise11
Large Enterprise13
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise16
Large Enterprise22
 

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 have not seen specific outcomes or metrics since implementing Proofpoint Email Protection, such as a reduction in phishing incidents or improved response time. Proofpoint Email Protection can imp...
 

Also Known As

Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Mimecast Advanced Email Security
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 and Collaboration Threat Protection vs. Proofpoint Email Protection and other solutions. Updated: December 2025.
881,928 professionals have used our research since 2012.