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Mimecast Email Security vs Proofpoint Email Protection comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 15, 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
6.6
Mimecast Email Security effectively prevents phishing, enhancing security and providing significant protection despite challenges in quantifying ROI.
Sentiment score
7.0
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.
 

Customer Service

Sentiment score
5.8
Mimecast Email Security's customer service is mixed, with responsiveness praised by some, but issues with waiting times noted by others.
Sentiment score
7.3
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.
Mimecast technical support is generally quite good.
 

Scalability Issues

Sentiment score
7.2
Mimecast Email Security is a scalable SaaS solution, praised for flexibility and effectiveness across various organization sizes and industries.
Sentiment score
7.6
Proofpoint Email Protection excels in adaptability and scalability, serving both small and large enterprises with ease and flexibility.
Proofpoint is scalable for multi-site organizations with thousands of users.
 

Stability Issues

Sentiment score
7.5
Mimecast Email Security is generally stable and reliable, with rare bugs, occasional minor issues, and minimal downtime reported.
Sentiment score
8.2
Users rate Proofpoint Email Protection highly for reliability and performance, with minor UI challenges and rare stability issues.
 

Room For Improvement

Mimecast Email Security requires pricing, detection, user interface improvements, better support, and enhanced AI integration for smoother operations.
Proofpoint Email Protection struggles with setup complexity, feature enhancements, pricing issues, and requires improved support and interface design.
A lot of emails were missed despite being known samples.
We discussed the phishing aspect, the DNS system, and the key rotation.
Proofpoint could expand its phishing detection capabilities to improve its efficiency.
More security could be implemented.
I may advise Proofpoint to adjust marketing solutions based on each country.
 

Setup Cost

Mimecast Email Security offers comprehensive features but is considered premium, with variable pricing flexibility and additional support costs.
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.
Customers pay around $90,000 yearly for a 1,000-user organization, with the subscription license being the main expense, apart from implementation fees.
Additional costs do come in, but it enhances security.
 

Valuable Features

Mimecast Email Security offers strong threat protection, seamless Microsoft 365 integration, and user-friendly features for comprehensive email threat mitigation.
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.
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.
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.
The main feature I find most effective is that Proofpoint Email Protection scans emails and quarantines the doubtful ones.
 

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
6.2
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)
3rd
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
52
Ranking in other categories
Email Security (2nd), Security Awareness Training (2nd), Digital Risk Protection (3rd)
 

Mindshare comparison

As of July 2025, in the Secure Email Gateway (SEG) category, the mindshare of Mimecast Email Security is 11.9%, down from 15.8% compared to the previous year. The mindshare of Proofpoint Email Protection is 21.6%, up from 18.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG)
 

Featured Reviews

ShaheenKapery - PeerSpot reviewer
Provides valuable security features and has a straightforward setup process
The initial setup process is straightforward and takes a weekend at most. A .com domain can take up to forty-eight hours, while a local domain takes about four to eight hours because it has to propagate through the international DNS records. It is a cloud-only solution. If you're managing email security on-premises, you use your bandwidth to download emails, including spam, and then use your servers to clean it up. For example, say a third of your email is spam; this consumes significant bandwidth and resources. However, if you use Mimecast, they filter the emails on their servers before delivering them to you. It can be a major selling point in regions with expensive bandwidth, such as Africa. You can save bandwidth and improve overall efficiency by offloading the spam filtering to Mimecast.
AhmedRamadan - PeerSpot reviewer
Optimize email security with effective sandboxing and auto Pull for quarantine
Proofpoint is used as an email security gateway for big enterprises, primarily for their on-premises servers. Many customers also use it alongside Office 365 Proofpoint offers a complete solution for email security with features like DLP, email archiving, and encryption. The most valuable…
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Use our free recommendation engine to learn which Secure Email Gateway (SEG) solutions are best for your needs.
860,168 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
14%
Educational Organization
11%
Financial Services Firm
10%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 is your experience regarding pricing and costs for Mimecast Email Security with Targeted Threat Protection?
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
What needs improvement with Mimecast Email Security with Targeted Threat Protection?
There is nothing that notably stands out in need of improvement at present.
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?
It became very expensive due to the nature of local circumstances, and I may advise Proofpoint to adjust marketing solutions based on each country.
 

Also Known As

Mimecast Email Security with Targeted Threat Protection
Proofpoint Enterprise Protection, Cofense PhishMe, 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: June 2025.
860,168 professionals have used our research since 2012.