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Microsoft Purview Data Lifecycle Management vs Mimecast Advanced Email Security comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 2, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Microsoft Purview Data Life...
Ranking in Email Archiving
9th
Average Rating
8.4
Reviews Sentiment
5.2
Number of Reviews
4
Ranking in other categories
Document Management Software (5th), Data Governance (26th), Microsoft Security Suite (27th)
Mimecast Advanced Email Sec...
Ranking in Email Archiving
1st
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
48
Ranking in other categories
Email Security (4th), Office 365 Protection (2nd), Secure Email Gateway (SEG) (3rd)
 

Mindshare comparison

As of October 2026, in the Email Archiving category, the mindshare of Microsoft Purview Data Lifecycle Management is 2.8%, up from 0.1% compared to the previous year. The mindshare of Mimecast Advanced Email Security is 12.7%, down from 21.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Archiving Mindshare Distribution
ProductMindshare (%)
Mimecast Advanced Email Security12.7%
Microsoft Purview Data Lifecycle Management2.8%
Other84.5%
Email Archiving
 

Featured Reviews

ST
Ict Systems Manager at Lltnpa
Automated retention has transformed compliance workflows and now simplifies audit responses
The deep native integration with Microsoft 365 is what ultimately made me decide on Microsoft Purview Data Lifecycle Management over Enterprise Vault and OpenText Content Manager. Auto-apply retention labels using machine learning is the specific integration with Microsoft 365 that made it the deciding factor for me over Enterprise Vault or OpenText. Manually labeling content at our data volumes is not realistic. The automated classification based on sensitive information types and trainable classifiers is what makes the program actually scale. That feature gets used constantly. We went from inconsistent ad-hoc retention practices to a consistent, automated, documented program across the whole organization with Microsoft Purview Data Lifecycle Management. That shift from a compliance audit perspective is enormous.
Avinash Mishra - PeerSpot reviewer
Manager - EUC at Finthrive
Advanced email filtering has blocked massive spam volumes and prevents unauthorized data leaks
Improvements for Mimecast Advanced Email Security include enhancing the user interface and accessibility, particularly regarding admin capabilities to add or modify user accounts. Streamlining this could improve overall usability and security management for users. Reporting is another area needing improvement in Mimecast Advanced Email Security, as the reports provided are not very easy to decipher. With artificial intelligence being integrated into various tools including Mimecast Advanced Email Security, I believe there is potential to enhance functionality, enabling users to ask specific questions and retrieve concise answers instead of overwhelming data. I choose a nine for Mimecast Advanced Email Security because improvements such as better user interface and artificial intelligence integration features would greatly enhance its usability. While no tool is perfect, these adjustments could greatly elevate Mimecast Advanced Email Security's capabilities.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The UI is the most valuable feature."
"The impact of Microsoft Purview Data Lifecycle Management on my unified data catalog has improved a lot; the improvements I see are in the lineage, the discovery, and the labeling."
"HPE Apollo Systems has positively impacted our organization by improving business operations by eighty percent, saving time, improving efficiency, and facilitating the management of large data sets."
"The system is stable; I haven't encountered any worldwide stability issues unlike other office products."
"We went from inconsistent ad-hoc retention practices to a consistent, automated, documented program across the whole organization with Microsoft Purview Data Lifecycle Management."
"It's good, it keeps the spam out."
"It's good, it keeps the spam out, and it does a really good job at not allowing threats through."
"URL inspection works pretty well."
"Mimecast Advanced Email Security positively impacts my organization by filtering spam emails."
"From the tools I have worked with, it is actually the best, and I am happy with it."
"Mimecast has been in the market for a long time; it's a good tool if you want to simplify your operations and a good tool for removing on-prem appliances that otherwise you would need to do with the protection that Mimecast provides."
"Mimecast has some good support services in place."
"Mimecast certainly helped my customers reduce phishing emails."
 

Cons

"There is no specific improvement I would suggest for Microsoft Purview Data Lifecycle Management, but I think if they can work on policy design and usability, adding more granular control for the organization regarding controlling the movement of data outside would definitely improve the solution."
"Microsoft's Purview Data Lifecycle Management preview features can be unreliable, hindering their usefulness."
"The time it takes to scan is one issue; when we raise high-volume issues and tickets related to scanning failures, it relates to permission errors, which are technical challenges."
"The initial setup took longer than we expected. Microsoft Purview Data Lifecycle Management is not a turn-it-on-and-go product."
"I think labeling could use a lot more AI assistance. AI implementation into labeling would be beneficial."
"The interface and the documentation could be improved."
"The solution should include more AI features instead of Mimecast's more general static configuration tooling."
"As an area of improvement for Mimecast Advanced Email Security, I would like to see enhancements in capabilities to eliminate false positives even before emails hit the mailbox, leveraging AI functionalities."
"Many of our users complain that the system is blocking too many attachments. It's a good practice from a security perspective, but our users think Mimecast is doing too much. It might be something we'll have to adjust."
"Lately, Mimecast's outbound mail servers have been regularly blocklisted by spam filters. That didn't happen a few years back, but it seems to be a more frequent problem these days. When a server is blocklisted, it means all of my outgoing mail ends up in the recipient's junk mail. That affects my reputation and business confidence."
"The system is not user-friendly because you have to create policies that are mapped in a dictionary."
"It analyzes patterns but sometimes overlooks suspicious indicators."
"Its pricing can be improved. It is a bit expensive."
 

Pricing and Cost Advice

"The service operates on a pay-as-you-go basis, charging an extra one cent per field of metadata scanned in our data."
"For what it is, the product is overpriced."
"The product price is moderate. I rate the pricing a five out of ten."
"Two subscription options are currently offered: monthly and yearly. My suggestion is to opt for the yearly subscription as it can give some discount. The pricing isn't high as other cloud solutions are pricier than Microsoft's offerings."
"Its price is in the middle range. It is a structured licensing model where there are various components that you can add or choose to add or not."
"Compared to the other solutions in the market, Mimecast Email Security with Targeted Threat Protection's pricing is fine."
"The customers can select the license packages as per their requirements."
"Compared to the other products in the market, it is neither cheap but nor very expensive. I would rate it somewhere in the middle, 5 out of 10."
"The product has good pricing in terms of return on investment."
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Government
10%
Financial Services Firm
9%
Comms Service Provider
8%
Outsourcing Company
10%
Computer Software Company
9%
Financial Services Firm
9%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business21
Midsize Enterprise13
Large Enterprise23
 

Questions from the Community

What needs improvement with Microsoft Purview Data Lifecycle Management?
Better coverage outside Microsoft 365 is a feature I wish Microsoft Purview Data Lifecycle Management had that it does not offer today. If I could change one thing about Microsoft Purview Data Life...
What is your primary use case for Microsoft Purview Data Lifecycle Management?
Automating retention and deletion across our Microsoft 365 environment is my main use case for Microsoft Purview Data Lifecycle Management. At Microsoft scale, Exchange, SharePoint, OneDrive, and T...
What advice do you have for others considering Microsoft Purview Data Lifecycle Management?
Microsoft Purview Data Lifecycle Management implementation is very much a team-wide effort. The policies apply organization-wide across all Microsoft 365 users. The management side, configuring pol...
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...
 

Also Known As

Microsoft Information Governance, Microsoft Purview Records Management
Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Email and Collaboration Threat Protection
 

Overview

 

Sample Customers

Information Not Available
Hewlett-Packard Company (HP), Cushman and Wakefield, PIB Group, Swissport
Find out what your peers are saying about Microsoft Purview Data Lifecycle Management vs. Mimecast Advanced Email Security and other solutions. Updated: September 2026.
917,433 professionals have used our research since 2012.