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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."
"The most important feature is data processing, and I like the dashboard and the undo or multi-call feature of Microsoft Purview Customer Lockbox."
"Proofpoint Email Protection has reduced the analyst overhead in responding to phishing incidents by several orders of magnitude."
"Proofpoint Email Protection has positively impacted my organization because it has done its job; the company we support does not have any sort of vulnerability attacks by having it in place."
"We have noticed a huge improvement in productivity of the users by clearing up their inbox of malicious emails and spam, and it has also prevented and secured our environment on a daily basis, making the security team's job much easier."
"The targeted attack protection that we use has been great, as has the email filtering and the rules that we have set for Proofpoint."
"Proofpoint Email Protection's initial installation is straightforward. It took us less than a day to complete the implementation."
"URL scanning and online relay service are the most valuable features of Proofpoint Email Protection."
"It's a mature product. It does a good job in detection."
"Proofpoint is number one in terms of market share worldwide, and we recommend it to clients because of its rich features in email protection, cloud protection, and backup targeted attack protection."
 

Cons

"The pricing for personal users is not cost-effective. It feels expensive for individual expenses."
"Proofpoint is fairly expensive."
"There are user interface complexities that require integration with a SOC team, which needs time and training."
"They do not have an on-demand scan for the internal viruses and internal users, and they don't have a scan for the exchange server against viruses and spam as Symantec does."
"The areas that have room for improvement in Proofpoint Email Protection include their cost of ownership, which is fairly high."
"The false positives are an issue."
"Pricing for the platform could still be cheaper."
"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."
"I would want better spear phishing protection in the essentials package."
 

Pricing and Cost Advice

Information not available
"The solution uses a licensing model that is reasonable compared to other products."
"We sell annual licenses for this solution."
"In general, the pricing is competitive."
"The end customer is buying our solution, which can be for monthly or annual usage depending on our payment and business model."
"The price is reasonable."
"Proofpoint Email Protection is a reasonably priced product, which means that it is neither too low nor too high in terms of price."
"I rate the price of Proofpoint Email Protection a four out of five."
"It is expensive."
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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.