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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, 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 provided top shelf email protection services and has prevented breaches and loss of data."
"Proofpoint Email Protection is quite scalable; I have not experienced any issues with the onboarding and offboarding of users and devices."
"Proofpoint Email Protection is the best solution from the perspective of email security."
"The most valuable feature of Proofpoint Email Protection is the blocking capabilities, it blocks a lot of potential threats."
"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."
"The power, flexibility, configurability, and Proofpoint Email Protection's professional services were some of the biggest selling points for me at the time and the things that I benefited from the most."
"The initial implementation is pretty easy to handle."
"The solution has very strong detection for most of the phishing and malicious emails received from the outside."
 

Cons

"The pricing for personal users is not cost-effective. It feels expensive for individual expenses."
"Everything with Proofpoint Email Protection has room for improvement in my opinion."
"Filtering false positives is highly challenging because it is impossible for humans to identify which emails are genuine and which are spam."
"The solution can be expensive."
"Pricing for the platform could still be cheaper."
"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."
"The scalability can be improved, and the solution can be optimized."
"Every client always finds it expensive, but I don't know how much they're paying for it."
"It can be improved pricing-wise so that it is affordable for the SMB market."
 

Pricing and Cost Advice

Information not available
"The licensing cost of Proofpoint Email Protection is a lot higher than other solutions, such as Barracuda."
"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."
"The tool's pricing depends on the customer's preference, offering options for an annual license or a monthly subscription. The cost varies based on factors such as the number of users and specific requirements. Overall, the pricing is competitive."
"The solution is expensive."
"Proofpoint is fairly expensive."
"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."
"Clients pay for an annual subscription of Proofpoint Email Protection. Every client always finds it expensive."
"The licensing is basically $8/user."
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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.