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Microsoft Purview Customer Lockbox 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:
 

Categories and Ranking

Microsoft Purview Customer ...
Ranking in Office 365 Protection
7th
Average Rating
9.0
Reviews Sentiment
7.9
Number of Reviews
1
Ranking in other categories
No ranking in other categories
Proofpoint Email Protection
Ranking in Office 365 Protection
1st
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
106
Ranking in other categories
Email Security (1st), Advanced Threat Protection (ATP) (3rd), Digital Risk Protection (3rd), Secure Email Gateway (SEG) (1st)
 

Mindshare comparison

As of June 2026, in the Office 365 Protection category, the mindshare of Microsoft Purview Customer Lockbox is 1.9%, down from 2.1% compared to the previous year. The mindshare of Proofpoint Email Protection is 25.0%, up from 19.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Office 365 Protection Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection25.0%
Microsoft Purview Customer Lockbox1.9%
Other73.1%
Office 365 Protection
 

Featured Reviews

Mayeen Uddin - PeerSpot reviewer
Officer at SFIL
Dashboard functionality and data processing offer value with an easy setup
We are using Microsoft Purview Customer Lockbox for email access The most important feature is data processing. I like the dashboard and the undo or multi-call feature of Microsoft Purview Customer Lockbox. The pricing for personal users is not cost-effective. It feels expensive for individual…
Siva_Prasad - PeerSpot reviewer
Principal Consultant at Infosys
Email defenses have reduced phishing incidents and protect sensitive data across our enterprise
As things are evolving and threats develop in unpredictable ways, Proofpoint must adopt AI solutions and agentic solutions more aggressively and provide them to customers as part of service offerings. Inbuilt AI solutions would add more value and make Proofpoint a more premium choice for customers. With the help of AI solutions, agentic AI, and generative AI capabilities, the product would be more efficient than it currently is. Filtering false positives is highly challenging because it is impossible for humans to identify which emails are genuine and which are spam. Proofpoint should focus more on this area with back-end agents or other tools. Proofpoint should decide which emails are genuine and which are spam so it is not a challenge for end users. When receiving an email, end users should not have to determine whether to respond or not. Proofpoint should not release such spam emails and should strictly block such spam and spoof emails based on connection IPs. Currently, false positives occur in the product, and while this occurs in every product, it is an area where Proofpoint can focus on improving and reducing false positives. One email is enough for an end user to be deceived and lose money, so addressing this area is critical.

Quotes from Members

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

Pros

"The most important feature is data processing, and I like the dashboard and the undo or multi-call feature of Microsoft Purview Customer Lockbox."
"The most important feature is data processing."
"Proofpoint Email Protection has positively impacted my overall security posture, making it easier for users to encrypt files right in the portal and send them to customers, and it is simple for customers to access those files without difficulty."
"Proofpoint Email Protection has definitely impacted my organization positively."
"The solution blocks malicious emails containing viruses and malware and reduces them out of spam."
"The most valuable feature of Proofpoint Email Protection is the central location dashboard for viewing all the related information for risk."
"Proofpoint is much more advanced and capable of safeguarding the infrastructure and protecting the customer landscape, specifically from an email and attachment point of view, in day-to-day operations compared to these solutions."
"Proofpoint Email Protection has massively improved the attack surface and has limited a lot of user compromise events."
"Proofpoint Email Protection has reduced the analyst overhead in responding to phishing incidents by several orders of magnitude."
"It is a very scalable solution."
 

Cons

"The pricing for personal users is not cost-effective. It feels expensive for individual expenses."
"The email DLP portion could be a bit easier."
"Regarding improvements or enhancements in Proofpoint Email Protection, I find the platform somewhat chaotic. It has too many different sections that perform the same function, which is very confusing."
"To move to a more sophisticated email security solution was cost-prohibitive. When you compare it to others, it was too expensive."
"Proofpoint has a lot of false alarms. Even their mail flow rules are not the best thing."
"The price could be improved."
"I would like to see improvements in the transition from Proofpoint Protection Server to Proofpoint on Demand because Proofpoint Protection Server is not very user-friendly and requires logging into two portals for some features."
"The support team was a bit slow."
"Proofpoint Email Protection can be improved in that it is quite a large product, so learning how to be fully conversant in it can take some time within the team; this is probably the biggest challenge at the moment for us, getting everyone fully conversant to support the product."
 

Pricing and Cost Advice

Information not available
"Annually, it costs us about $92,000. This is pretty much what it costs us. There is no additional cost."
"Proofpoint Email Protection is a reasonably priced product, which means that it is neither too low nor too high in terms of price."
"It is expensive."
"Pricing has recently been increased and the cost is a downside"
"Proofpoint Email Protection has comparable pricing."
"I rate the price of Proofpoint Email Protection a four out of five."
"The solution is expensive."
"In general, the pricing is competitive."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
13%
Manufacturing Company
10%
Computer Software Company
7%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business28
Midsize Enterprise24
Large Enterprise59
 

Questions from the Community

What needs improvement with Microsoft Purview Customer Lockbox?
The pricing for personal users is not cost-effective. It feels expensive for individual expenses.
What is your primary use case for Microsoft Purview Customer Lockbox?
We are using Microsoft Purview Customer Lockbox for email access.
What is your experience regarding pricing and costs for Proofpoint Email Protection?
I am not informed about the pricing, setup costs, or licensing as it is handled by a different team. I come from a technical perspective.
What needs improvement with Proofpoint Email Protection?
For improvement, the dashboard of Proofpoint Email Protection needs some enhancement. Currently, we are using multiple dashboards, and it would be beneficial if everything was integrated. A single ...
What is your primary use case for Proofpoint Email Protection?
In our environment, we are using Proofpoint Email Protection for inbound email protection as a primary gateway, while Microsoft 365 serves as the secondary gateway. In the primary gateway, it scans...
 

Also Known As

No data available
Proofpoint Enterprise Protection, Proofpoint Digital Protection
 

Overview

 

Sample Customers

Information Not Available
Blocket, University of Waterloo, Lincoln Memorial University, WellSpan Health, U-Haul, Carestream Health, Westinghouse
Find out what your peers are saying about Proofpoint, Mimecast, Sophos and others in Office 365 Protection. Updated: May 2026.
902,270 professionals have used our research since 2012.