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Microsoft Defender for Identity vs Proofpoint Email Protection comparison

 

Comparison Buyer's Guide

Executive Summary

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
4.4
Microsoft Defender for Identity is cost-effective and efficient, offering incident prevention and resolution without complex hardware setups.
Sentiment score
6.5
Proofpoint Email Protection effectively reduced threats and costs, excelling in phishing defense, leading to significant efficiency improvements.
 

Customer Service

Sentiment score
6.9
Opinions on Microsoft Defender for Identity support vary, highlighting responsiveness, but issues include delays, contact challenges, and false positives.
Sentiment score
7.1
Proofpoint Email Protection's customer service is praised for responsiveness and expertise, though some report slow responses or portal issues.
Generally, the support is more effective than other providers like Oracle.
Owner at Alopex ONE UG
The quality of support is very good, but troubleshooting can take time due to complex setups and the need to provide many logs.
Cloud Security & Governance at a financial services firm with 10,001+ employees
The people I normally use for support are very knowledgeable, especially when they help remote in and get to where I need to go and show me much faster and help me understand what I should be doing.
Technology Coordinator at a educational organization with 501-1,000 employees
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
7.2
Microsoft Defender for Identity efficiently integrates and scales globally, supporting diverse organizational needs within Microsoft’s ecosystem effectively.
Sentiment score
7.5
Proofpoint Email Protection excels in adaptability and scalability, serving both small and large enterprises with ease and flexibility.
In a Microsoft-centric organization, especially with Azure infrastructure and Office 365, Microsoft Defender for Identity is scalable.
Cloud Security & Governance at a financial services firm with 10,001+ employees
Proofpoint is scalable for multi-site organizations with thousands of users.
Products and solutions director at ITVikings
 

Stability Issues

Sentiment score
7.0
Microsoft Defender for Identity is highly reliable, with minimal incidents, seamless operation, and consistent ratings between seven and nine.
Sentiment score
8.2
Users rate Proofpoint Email Protection highly for reliability and performance, with minor UI challenges and rare stability issues.
Microsoft Defender for Identity is quite robust and built on Azure hyperscale infrastructure, with a 99% availability.
Cloud Security & Governance at a financial services firm with 10,001+ employees
We do not see any issues with the stability of Microsoft Defender for Identity.
Deputy Manager at Servion Global Solutions
Having recently started using it, reliability is affirmed, but manual investigation is often performed to verify if alerts identified by auto-remediation are accurate.
Instrumentation Engineer at Toyo Engineering Corp
 

Room For Improvement

Microsoft Defender for Identity users seek improved cloud integration, user-friendly features, better support, and streamlined processes for enhanced threat management.
Proofpoint Email Protection struggles with setup complexity, feature enhancements, pricing issues, and requires improved support and interface design.
If Microsoft could develop a feature that indicates when impossible travel is caused by VPN connections, it would prevent unnecessary password resets and session disruptions, especially for VIP users in organizations.
CyberSecurity Engineer | Information Security Management at Self Employed
One improvement I would recommend is the integration of an admin application within Teams, allowing easy access to attack information on a mobile platform.
Owner at Alopex ONE UG
Reducing false positives is something we've been working on with Microsoft.
Cloud Security & Governance at a financial services firm with 10,001+ 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
I may advise Proofpoint to adjust marketing solutions based on each country.
Manager, IT Director at Cakmak Avukatlik Ortakligi
 

Setup Cost

Microsoft Defender for Identity is cost-effective with E5 licenses despite complex pricing and competitive against other security solutions.
Proofpoint Email Protection is considered costly, with pricing starting at $8 per user and varying by features.
If they can reduce the costs, organizations will be happy, and it will compensate for using the Azure environment, which is more expensive on the infrastructure as a service side.
CyberSecurity Engineer | Information Security Management at Self Employed
Ensuring a fair price according to market standards.
Owner at Alopex ONE UG
From an organization perspective, using E5 licenses is value for money, especially if Azure and Office 365 are already in use.
Cloud Security & Governance at a financial services firm with 10,001+ 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
Additional costs do come in, but it enhances security.
Logistics Manager at a educational organization with 501-1,000 employees
 

Valuable Features

Microsoft Defender for Identity integrates with Azure to offer comprehensive threat detection, identity protection, and advanced real-time security insights.
Proofpoint Email Protection offers advanced threat defense, user-friendly interface, and seamless Office 365 integration for comprehensive email security.
We receive an advance report of risky users, allowing us to take preemptive action before an attack causes damage to organization details.
Instrumentation Engineer at Toyo Engineering Corp
The most valuable feature is its hybrid artificial intelligence, which gathers forensic data to track and counteract security threats, much like the CSI series in effect.
Owner at Alopex ONE UG
The advanced threat protection is one of the strengths of Microsoft Defender for Identity, as it utilizes user and entity analytics and can detect indicative attacks.
Cloud Security & Governance at a financial services firm 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
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

Microsoft Defender for Iden...
Ranking in Advanced Threat Protection (ATP)
8th
Average Rating
8.8
Reviews Sentiment
6.8
Number of Reviews
28
Ranking in other categories
Microsoft Security Suite (4th), Identity Threat Detection and Response (ITDR) (3rd)
Proofpoint Email Protection
Ranking in Advanced Threat Protection (ATP)
4th
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
53
Ranking in other categories
Email Security (3rd), Digital Risk Protection (3rd), Office 365 Protection (2nd), Secure Email Gateway (SEG) (2nd)
 

Mindshare comparison

As of January 2026, in the Advanced Threat Protection (ATP) category, the mindshare of Microsoft Defender for Identity is 4.5%, down from 5.4% compared to the previous year. The mindshare of Proofpoint Email Protection is 7.1%, down from 12.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Advanced Threat Protection (ATP) Market Share Distribution
ProductMarket Share (%)
Proofpoint Email Protection7.1%
Microsoft Defender for Identity4.5%
Other88.4%
Advanced Threat Protection (ATP)
 

Featured Reviews

RK
Cloud Security & Governance at a financial services firm with 10,001+ employees
Protect on-premises and hybrid environments with advanced threat detection and seamless integration
Our Active Directory implementation is a hybrid one. The advanced threat protection is one of the strengths of Microsoft Defender for Identity, as it utilizes user and entity analytics and can detect indicative attacks. It identifies lateral movements, privilege escalations, and alerts on potential attacks. The tool is also used for security posture assessment. The seamless integration with other Microsoft solutions within our Microsoft-centric environment is also a major advantage.
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.
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879,422 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
13%
Manufacturing Company
8%
Comms Service Provider
7%
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 Business8
Midsize Enterprise4
Large Enterprise14
By reviewers
Company SizeCount
Small Business21
Midsize Enterprise13
Large Enterprise17
 

Questions from the Community

What do you like most about Microsoft Defender for Identity?
Microsoft Defender for Identity provides excellent visibility into threats by leveraging real-time analytics and data intelligence.
What needs improvement with Microsoft Defender for Identity?
I really would have to sit down to think about how Microsoft Defender for Identity can be improved. I didn't take stock in what needs to be improved because I appreciated having the tools right the...
What is your primary use case for Microsoft Defender for Identity?
My main use cases for Microsoft Defender for Identity include Conditional Access, checking risky users, remediating risky users, and user sign-ins. I can easily remediate or determine what the user...
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

Azure Advanced Threat Protection, Azure ATP, MS Defender for Identity
Proofpoint Enterprise Protection, Proofpoint Digital Protection
 

Overview

 

Sample Customers

Microsoft Defender for Identity is trusted by companies such as St. Luke’s University Health Network, Ansell, and more.
Blocket, University of Waterloo, Lincoln Memorial University, WellSpan Health, U-Haul, Carestream Health, Westinghouse
Find out what your peers are saying about Microsoft Defender for Identity vs. Proofpoint Email Protection and other solutions. Updated: December 2025.
879,422 professionals have used our research since 2012.