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Microsoft Purview Customer Lockbox vs Proofpoint Email Protection comparison

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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
110
Ranking in other categories
Email Security (1st), Advanced Threat Protection (ATP) (5th), Digital Risk Protection (5th), Secure Email Gateway (SEG) (1st)
 

Mindshare comparison

As of November 2026, in the Office 365 Protection category, the mindshare of Microsoft Purview Customer Lockbox is 2.9%, up from 1.6% compared to the previous year. The mindshare of Proofpoint Email Protection is 23.9%, up from 21.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Office 365 Protection Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection23.9%
Microsoft Purview Customer Lockbox2.9%
Other73.2%
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
Senior Consultant at a tech vendor with 10,001+ employees
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."
"It has been comprehensive and easy to use for both users and administrators."
"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 has increased the efficiency of the organization, as before a single end user might be receiving fifteen, twenty, or thirty spam emails in a week, but with Proofpoint Email Protection, they have decreased by approximately eighty percent, so users are receiving many fewer spam emails and do not have to go through all the spam emails just to verify if they are legitimate or not."
"URL scanning and online relay service are the most valuable features of Proofpoint Email Protection."
"The Phish Alarm button allows users to submit questionable emails for review and complete analysis."
"Proofpoint Email Protection is a good product, and its most beneficial feature is the Threat Response Auto-Pull. I also like that it's an integrated email security solution."
"Proofpoint Email Protection provides visibility into people-based risk within my organization, and I am able to see which users have a higher risk rate."
"I recommend all of my customers to migrate and start using Proofpoint as it is secure, minimizes risk, and eliminates phishing attacks."
 

Cons

"The pricing for personal users is not cost-effective. It feels expensive for individual expenses."
"One major threat is QR code phishing, along with TOAD (Telephone-Oriented Attack Delivery). TOAD attacks don't include links, URLs, or attachments in emails. Instead, attackers try to trick you into calling them, often by offering something enticing like a 50% discount on football matches."
"As an enterprise, we have high demands on the services, and if we have to wait for something like a week or weeks, it is not acceptable; we need solutions in one or two days sometimes because if there is spam going around, you cannot wait weeks."
"While Proofpoint Email Protection has good AI capabilities, there is room for improvement as the AI forensics preview tab doesn't always summarize things correctly."
"It became very expensive due to the nature of local circumstances, and I may advise Proofpoint to adjust marketing solutions based on each country."
"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."
"My experience with pricing, setup cost, and licensing for Proofpoint Email Protection is that it is somewhat on the higher end and more premium, but it is a good product."
"Some of the old portal features of Proofpoint Email Protection are missing in the new portal, so some of the settings could be modernized."
"While ingesting the logs into our SIEM tool, most organizations don't have the capability to buy the email gateway as it is quite an expensive one."
 

Pricing and Cost Advice

Information not available
"I rate the product price a seven on a scale of one to ten, where one is low price and ten is high price."
"Proofpoint Email Protection has comparable pricing."
"The end customer is buying our solution, which can be for monthly or annual usage depending on our payment and business model."
"The solution is expensive."
"I rate the price of Proofpoint Email Protection a four out of five."
"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."
"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 on a yearly basis. Their floor for SMB doesn't matter. The user count is 100 users and below at $2,500 a year. Its cost is higher than other solutions. It is probably about 20% to 30% higher than what you would get with Microsoft. There are no additional costs. All costs are factored in. It can be improved pricing-wise so that it is affordable for the SMB market."
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business31
Midsize Enterprise23
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?
To improve Proofpoint Email Protection, I suggest breaking down the URL into one versus three different GUIs. Regarding Proofpoint Email Protection's AI capabilities, I think its governance and sec...
What is your primary use case for Proofpoint Email Protection?
My main use case for Proofpoint Email Protection includes phishing emails, spam, URL isolation, and training. I utilize the email protect portal to ensure that none of our employees in any of the b...
 

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, Barracuda Networks and others in Office 365 Protection. Updated: October 2026.
921,028 professionals have used our research since 2012.