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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
109
Ranking in other categories
Email Security (1st), Advanced Threat Protection (ATP) (2nd), Digital Risk Protection (3rd), Secure Email Gateway (SEG) (1st)
 

Mindshare comparison

As of August 2026, in the Office 365 Protection category, the mindshare of Microsoft Purview Customer Lockbox is 2.2%, up from 1.0% compared to the previous year. The mindshare of Proofpoint Email Protection is 24.7%, up from 22.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Office 365 Protection Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection24.7%
Microsoft Purview Customer Lockbox2.2%
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."
"The most important feature is data processing, and I like the dashboard and the undo or multi-call feature of Microsoft Purview Customer Lockbox."
"They have customized security rules, mature rules, anti-virus protection, as well as email authentication similar to SPF, DKIM, and DMARC."
"Proofpoint Email Protection is a great security tool that is not only proactive but also reactive on a case-to-case basis and provides all the mature tools that can be utilized for the first layer and second layer message defense."
"The most valuable features of Proofpoint Email Protection are the performance from being on the cloud."
"Our clients have definitely seen an ROI; their level of breach and reporting of malicious emails from their user base actually went down by over 50% by using this product."
"I recommend Proofpoint Email Protection because it provides everything in one place, such as security control."
"I recommend all of my customers to migrate and start using Proofpoint as it is secure, minimizes risk, and eliminates phishing attacks."
"The Tap and Trap features. They are the best features."
"From a mail gateway perspective, I think Proofpoint Email Protection is one of the most complete options compared to others."
 

Cons

"The pricing for personal users is not cost-effective. It feels expensive for individual expenses."
"Proofpoint Email Protection has a new approach to email security with its API feature. Currently, it only works with Office 365. In the future, it would be beneficial if it also works with Gmail, as Check Point is currently the only brand that has API email security for Gmail. It would be beneficial if Proofpoint Email Protection could add this integration, they would be more competitive with other vendors."
"The solution could be improved with the addition of PLP and email encryption features."
"The largest complaint that we hear from our customers is that there is no local support."
"While Proofpoint is better, I find Abnormal to be much more effective because it uses an advanced AI engine to detect email spams and phishing."
"The solution's server console and cluster dashboard have been the same for four years so need to be upgraded."
"I want Security Awareness Training in there as a package deal. A lot of companies are starting to value email security a little bit more and take it a little bit more seriously, and the great product that we link together with a lot of these sales is a training product called Security Awareness Training. It is an upsell that we do with Proofpoint, and it is definitely something that I recommend everybody with email security to look into. It would be great if Security Awareness Training is included with the email security."
"To move to a more sophisticated email security solution was cost-prohibitive. When you compare it to others, it was too expensive."
"Proofpoint Email Protection can be improved by using more AI-powered features."
 

Pricing and Cost Advice

Information not available
"Clients pay for an annual subscription of Proofpoint Email Protection. Every client always finds it expensive."
"It is multiple times more expensive, which made it very much less attractive."
"The licensing is basically $8/user."
"Proofpoint Email Protection has comparable pricing."
"They are competitively priced, but I have been forced to get quotes for other solutions now because they haven't been responding to requests to do the work that we would like them to do."
"We sell annual licenses for this solution."
"I rate the price of Proofpoint Email Protection a four out of five."
"The licensing model for Proofpoint Email Protection is simple. It's based on the number of users. Price-wise, Proofpoint Email Protection is a five out of ten because it's a pretty expensive solution."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
13%
Manufacturing Company
10%
Outsourcing 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 Enterprise62
 

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 needs improvement with Proofpoint Email Protection?
The downside is I feel the vendor support is a little lacking and should be more responsive. The technical support is not up to the mark.
What is your primary use case for Proofpoint Email Protection?
I am leading this security domain, and my L1 and L2s have been using Proofpoint Email Protection and other modules of Proofpoint Email Protection for more than three years.We are currently working ...
 

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: August 2026.
908,877 professionals have used our research since 2012.