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Microsoft Purview Data Loss Prevention vs Mimecast Insider Risk Management and Data 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
6.3
Users benefit from Microsoft Purview DLP due to seamless integration, cost savings, productivity boosts, and enhanced security without extra expenses.
Sentiment score
7.5
Organizations find it challenging to quantify ROI from Mimecast but emphasize savings, security benefits, and reduced admin time.
We save a lot of time for legal by using Microsoft Purview Data Loss Prevention when searching data for legal and HR and employee issues.
Staff Systems Administrator at a tech vendor with 1,001-5,000 employees
In these days of data breaches and data leakages that result in huge regulatory fines, we have not had any data breaches that could result in such fines.
Head of Geographies; Data Protection Officer at a financial services firm with 10,001+ employees
The fact that we are not being fined is crucial.
Cloud Architecture Lead at bolder inc
 

Customer Service

Sentiment score
5.9
Microsoft Purview Data Loss Prevention support experiences vary, with praised documentation but mixed reviews on response time and effectiveness.
Sentiment score
8.8
Mimecast Insider Risk Management's support is praised for quick, knowledgeable, and courteous service with proactive communication and minimal wait times.
I rate it a ten because they are very quick to respond and very quick to escalate if needed.
Cloud Architecture Lead at bolder inc
Once we got to the Microsoft engineers, the experience was great.
Director of Cyber Security
In terms of support, it's top-notch and always available to help us with any support issues we raise.
Head of Geographies; Data Protection Officer at a financial services firm with 10,001+ employees
 

Scalability Issues

Sentiment score
7.3
Microsoft Purview Data Loss Prevention is scalable for medium to large organizations but faces integration challenges with non-Microsoft systems.
Sentiment score
7.9
Mimecast offers smooth scalability and ease in license and storage expansion, with minimal difficulties across diverse environments.
The policy working and detection technology need enhancements.
Solution Architect at a tech services company with 51-200 employees
Microsoft Purview Data Loss Prevention scales well with the growing needs of our organization.
Head of Geographies; Data Protection Officer at a financial services firm with 10,001+ employees
Microsoft Purview Data Loss Prevention scales effectively.
Director, IT Infrastructure at a university with 1,001-5,000 employees
 

Stability Issues

Sentiment score
7.7
Microsoft Purview Data Loss Prevention is stable and reliable, with minor configuration issues but overall positive user feedback.
Sentiment score
7.8
Mimecast Insider Risk Management is stable and reliable, with minor issues typically linked to external factors or unsupported setups.
I would assess the stability and reliability of Microsoft Purview Data Loss Prevention as high.
Co-Owner and Principal Consultant at BriComp Computers
The stability and reliability of Microsoft Purview Data Loss Prevention is great.
Senior Infrastructure Engineer at a computer software company with 51-200 employees
I assess the stability and reliability of Microsoft Purview Data Loss Prevention as quite good because I don't think it's ever gone down, unlike other parts of Azure.
Director, IT Infrastructure at a university with 1,001-5,000 employees
 

Room For Improvement

Microsoft Purview DLP requires improvements in integration, stability, AI, licensing, language support, documentation, compatibility, and OCR features.
Mimecast's usability is hindered by limited reporting, confusing interface, Java dependency, and inadequate backup features and speed.
Business Premium users can get the data loss prevention features of E5, which is fantastic.
Senior Infrastructure Engineer at a computer software company with 51-200 employees
Implementing a degree of severity ranking is essential.
Director of Cyber Security
More guides, more examples, and more compliance frameworks such as NIST or even PCI compliance would be great.
Director, IT Infrastructure at a university with 1,001-5,000 employees
 

Setup Cost

Microsoft Purview Data Loss Prevention in E5 licenses offers competitive pricing and value with bundled security features and flexible options.
Mimecast offers scalable pricing, multi-year discounts, and robust support, providing good value despite initially high costs.
In terms of pricing, I would say it's unlimited value because it's bundled in our A5 and E5 licensing situation.
Director, IT Infrastructure at a university with 1,001-5,000 employees
The pricing for Microsoft Purview Data Loss Prevention is generally set; E5 is required, but it comes with all other products, so I would say it is fine.
Security Engineer at baseVISION
My experience with pricing, setup cost, and licensing is that it is very straightforward because we are all using E5 licenses, so we are covered.
Cloud Architecture Lead at bolder inc
 

Valuable Features

Microsoft Purview Data Loss Prevention excels in data protection, compliance, and productivity through integration and machine learning capabilities.
Mimecast offers seamless, low-impact data protection with intuitive management, real-time backups, customizable risk scoring, and cross-platform functionality.
Microsoft Purview Data Loss Prevention prevents users from sharing sensitive information outside the organization based on the configurations that we've implemented.
Head of Geographies; Data Protection Officer at a financial services firm with 10,001+ employees
Microsoft Purview has helped improve our organization's ability to discover sensitive data significantly as we use eDiscovery Purview, which is incredibly helpful.
Staff Systems Administrator at a tech vendor with 1,001-5,000 employees
Microsoft Purview Data Loss Prevention usually performs well, except for endpoint Data Loss Prevention, which may need improvements.
Solution Architect at a tech services company with 51-200 employees
 

Categories and Ranking

Microsoft Purview Data Loss...
Ranking in Data Loss Prevention (DLP)
1st
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
31
Ranking in other categories
Microsoft Security Suite (13th)
Mimecast Insider Risk Manag...
Ranking in Data Loss Prevention (DLP)
20th
Average Rating
9.0
Reviews Sentiment
7.4
Number of Reviews
78
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Data Loss Prevention (DLP) category, the mindshare of Microsoft Purview Data Loss Prevention is 8.3%, down from 15.0% compared to the previous year. The mindshare of Mimecast Insider Risk Management and Data Protection is 2.5%, up from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Data Loss Prevention (DLP) Market Share Distribution
ProductMarket Share (%)
Microsoft Purview Data Loss Prevention8.3%
Mimecast Incydr2.5%
Other89.2%
Data Loss Prevention (DLP)
 

Featured Reviews

ClayHampton - PeerSpot reviewer
Senior Infrastructure Engineer at a computer software company with 51-200 employees
Protects sensitive data across devices and helps address client compliance needs proactively
The reporting in Microsoft Purview Data Loss Prevention is a little easier than most Microsoft portals. I understand the licensing cost, especially if you're a Business Premium or in the SMB world, and a lot of clients run with a Business Premium. That comes with data loss prevention in a manual process, whereas E5 gives automation. Microsoft has said, 'Okay, here's your Microsoft 365 E5 compliance add-on that can go on the Business Premium.' So Business Premium users can get the data loss prevention features of E5, which is fantastic. That was the big point that they were missing, and I'm glad that they actually have an add-on now that makes it possible. So truly, I don't think there's a downside. Maybe more reporting, but that's it.
Chuck_Mackey - PeerSpot reviewer
Director, Cybersecurity Consulting at a tech services company with 51-200 employees
Provides comprehensive visibility and protection, helps in identifying the gaps in security, and comes with excellent onboarding support
In a couple of instances, we had a little bit of trouble in getting it distributed throughout the organization. We ultimately managed to do it, but they talk about it being a pretty simple process, and it became a little laborious. It would just turn away. The agents were not being distributed. It was just churning and churning and churning. When we were looking for specific categories of data, it was getting bogged down, but that was not even so much Code42, although some of it was their issue. It really has to do with the overall infrastructure and what the organization is prepared to do. If the infrastructure or the networking is a little hinky or you don't have a really finely tuned network infrastructure environment and your patches aren't up to date on your servers and your endpoints, it could get a little sticky. Other than that, it was okay. We really didn't have much problem beyond that. It took a couple of days to sort that out, but it was no big deal.
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Computer Software Company
9%
Manufacturing Company
8%
Insurance Company
5%
Manufacturing Company
12%
Performing Arts
7%
Financial Services Firm
6%
Outsourcing Company
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business14
Midsize Enterprise5
Large Enterprise15
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise24
Large Enterprise30
 

Questions from the Community

What is your experience regarding pricing and costs for Microsoft Purview Data Loss Prevention?
The pricing of Microsoft Purview Data Loss Prevention is acceptable for us.
What needs improvement with Microsoft Purview Data Loss Prevention?
I think that a feature on the side where you could click on something with a question mark, and then if you click on it, it would open up a new window and give you more information on that, almost ...
What is your primary use case for Microsoft Purview Data Loss Prevention?
My main use case is to upload mailboxes. We're using Microsoft Purview Data Loss Prevention to upload mailboxes. The migration tool that's built into the Microsoft Hybrid isn't working on our domai...
What is your primary use case for Code42 Incydr?
Data Leakage Protection on large scale environments. This can be to protect against leakage on endpoints and servers that consist of highly classified or propriety information. It can be added on a...
 

Also Known As

Microsoft Endpoint Data Loss Prevention, MS Endpoint DLP, Microsoft Endpoint DLP
Mimecast Incydr, Code42 Next-Gen DLP, Code42 Next-Gen Data Loss Protection, Code42 Forensic File Search, Code42 Backup + Restore
 

Overview

 

Sample Customers

Information Not Available
Adobe, Okta, Samsung, Taylormade, Boston University, Lending Club, North Highland, Stanford University, Ping Identity, Qualcomm, Pandora.
Find out what your peers are saying about Microsoft Purview Data Loss Prevention vs. Mimecast Insider Risk Management and Data Protection and other solutions. Updated: February 2026.
881,928 professionals have used our research since 2012.