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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
5.9
Proofpoint Email Protection reduces SOC workload, blocking threats and cutting costs, despite initial setup challenges.
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
7.2
Proofpoint Email Protection's customer support is reliable, responsive, and knowledgeable, with mostly positive user experiences and minor improvement areas.
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
Even the engineers have been helpful, and if we open a case, they get back to us right away.
Information Security Analyst at a government with 11-50 employees
We always contact them if we need support, whether it's for setting up features or technical support, which is very responsive.
System Administrator at Tutt Bryant Group
 

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
7.3
Proofpoint Email Protection offers scalable cloud architecture, effectively managing large email volumes with seamless integration and easy expansion.
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
The solution provides a graphical representation and dashboard view showing how many threats are getting blocked on a daily and monthly basis.
Information Technology Team Lead at a manufacturing company with 201-500 employees
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 Advanced Email Security is stable and reliable, with occasional login issues and rare performance interruptions reported by users.
Sentiment score
8.2
Proofpoint Email Protection is stable with rare downtimes, highly rated for reliability and minimal manual intervention required.
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
If Proofpoint Email Protection has an outage, we are either not receiving emails or not blocking the right threats.
Senior Security Engineer at Cloudflare
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
 

Room For Improvement

Mimecast Advanced Email Security is criticized for complex installation, costly pricing, and numerous functionality and support issues.
Proofpoint Email Protection requires a modern interface, improved AI and support services, competitive pricing, and better third-party 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 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
In addition to the UI improvements, I would appreciate an increase in the speed of the tasks being processed on the pod.
Security Specialist at a leisure / travel company with 10,001+ employees
There are pros and cons to that, but I would suggest maintaining a good balance between security protection and operational impact.
Senior Security Engineer at Cloudflare
 

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 offers robust features, justifying its premium cost, though some seek cheaper alternatives.
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 enhances security with effective phishing and spam protection, comprehensive features, and simplified management for improved efficiency.
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
Without Proofpoint Email Protection, most of these emails would have come through, slipped through Exchange, gotten into the user's mailbox, and created a lot of trouble for the organization.
Cyber Security Engineer at IT Naturally
Proofpoint Email Protection has positively impacted my organization by ensuring we are not at risk of a breach through email.
Release lead at a financial services firm with 10,001+ employees
TAP alerts, where Proofpoint Email Protection scans emails and sends alerts, provide the ability to review suspicious emails and validate them in a sandbox environment.
Infrastructure Analyst at a consultancy with 51-200 employees
 

Categories and Ranking

Mimecast Email and Collabor...
Ranking in Office 365 Protection
2nd
Ranking in Secure Email Gateway (SEG)
3rd
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
39
Ranking in other categories
Email Archiving (2nd), Secure Web Gateways (SWG) (19th)
Proofpoint Email Protection
Ranking in Office 365 Protection
1st
Ranking in Secure Email Gateway (SEG)
2nd
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
79
Ranking in other categories
Email Security (1st), Advanced Threat Protection (ATP) (3rd), Digital Risk Protection (3rd)
 

Mindshare comparison

As of March 2026, in the Secure Email Gateway (SEG) category, the mindshare of Mimecast Email and Collaboration Threat Protection is 17.1%, up from 11.1% compared to the previous year. The mindshare of Proofpoint Email Protection is 21.1%, down from 21.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection21.1%
Mimecast Email and Collaboration Threat Protection17.1%
Other61.8%
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.
AshishKochhar - PeerSpot reviewer
Information Technology Team Lead at a manufacturing company with 201-500 employees
Advanced email protection has blocked targeted attacks and reduces manual threat handling
I feel Proofpoint Email Protection is overpriced. I cannot say that the security level being provided does not justify the cost, but when comparing the similar level of security with other applications or security systems, it is overpriced. If Proofpoint could provide offers or discounts for customers who are already using the product or for new customers implementing it, along with some free services or add-ons, that would be helpful in terms of financial expense. Proofpoint Email Protection has recently introduced AI functionality in terms of data security capabilities and protecting AI assistance from targeted attacks. This is important since everything is now related to AI. The solution is doing threat detection and real-time threat detection and response pretty well. There are a few things I would like to see improved. Sometimes Proofpoint Email Protection takes time to analyze the workflow and the nature of the email. In this age of AI, the solution should analyze an email on the first receipt and determine whether it should pass or be marked as spam without checking previous data. Another improvement would be to have a more user-friendly dashboard. Additionally, if Proofpoint could add the same features in BCP as part of email protection in BCP, it would be helpful since I currently have to take a different add-on for BCP, and integrating it would save costs. I cannot say that threats have increased or decreased with Proofpoint Email Protection because it depends on the mail flow. The solution captures and filters out all threats, and the email threats vary every day depending on how many users are receiving how many emails per day. Today there might be 1,000 emails, tomorrow 5,000, and the day after 500. Proofpoint Email Protection does its job by scanning all emails and threats are reduced to some extent. Since I am aware that virus definitions are updated every day, I cannot blame Proofpoint Email Protection if they take time to determine the nature of an email being received. There are sometimes emails that are false positives, and Proofpoint Email Protection is a bit strict in analyzing false positives, sometimes stopping emails that are actually required. It analyzes the previous nature of an email and if a template looks like an informational template or related to spam, it blocks it because it looks similar to one blocked earlier. However, the template might actually be required. If I receive the same template today that is also blocked by Proofpoint Email Protection, that particular template might be useful and should not be blocked. In such cases, I have to raise it as a false positive stating that this is something in use or my users use and should be released. When AI starts doing its work, it analyzes the email from a sender with a particular template and releases it, but if the same email and template come from another sender, it blocks it according to the policies.
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
8%
Manufacturing Company
6%
Comms Service Provider
5%
Financial Services Firm
11%
Computer Software Company
10%
Manufacturing Company
9%
Retailer
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 Business25
Midsize Enterprise21
Large Enterprise35
 

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?
I do not know much about the licensing part, but I remember one customer mentioned that it cost them around one crore for approximately three thousand users. It is definitely cost-effective because...
What needs improvement with Proofpoint Email Protection?
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 th...
 

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: February 2026.
883,760 professionals have used our research since 2012.