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Proofpoint Email Protection vs ThreatLocker Zero Trust Platform comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 17, 2026

Review summaries and opinions

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

ROI

Sentiment score
5.2
Proofpoint Email Protection boosts financial savings and efficiency by reducing manual work, security incidents, and enhancing threat protection.
Sentiment score
6.5
ThreatLocker Zero Trust Platform reduces costs, boosts IT efficiency, enhances security, and increases revenue through service reselling and protection.
The ideal situation would be to have all these portals combined into one unified dashboard.
Information Security Architect at Loews Hotels
The time required for email investigations and responses has changed with Proofpoint Email Protection's visibility and automation.
Sr Security Engineer at a comms service provider with 201-500 employees
If you implement these kinds of solutions in your security stack, the first beneficial thing will be that you will not suffer any malware, and you will not face attacks, which ultimately leads to financial benefit.
Senior Security Engineer at DCIPHERS IT SOLUTIONS (P) LTD
If something were to happen without ThreatLocker, the cost would be huge, and thus, having it is definitely worth it.
Tier 1 IT Engineer at a retailer with 11-50 employees
Based on what we use ThreatLocker Zero Trust Endpoint Protection Platform for with the same functionalities and packaging, it was around 13 or 14 hours.
Head Of Cyber Security at a outsourcing company with 201-500 employees
We have the MDR package as well, and just knowing someone is watching those endpoints at 3:00 a.m. is a lifesaver that you cannot put a dollar figure on.
System Administrator at Gwynedd Mercy University
 

Customer Service

Sentiment score
7.0
Proofpoint Email Protection customer service receives mixed reviews for responsiveness and reliability, with some users noting delays and inefficiencies.
Sentiment score
8.0
ThreatLocker Zero Trust Platform offers 24/7 top-tier support with rapid, knowledgeable assistance, direct real agent access, and seamless escalation.
I am familiar with the granular policy control feature of Proofpoint Email Protection, and I find their support excellent for modifying those policies.
Senior Cybersecurity Specialist at a retailer with 10,001+ employees
Even the engineers have been helpful, and if we open a case, they get back to us right away.
Information Security Analyst at a government with 11-50 employees
We always contact them if we need support, whether it's for setting up features or technical support, which is very responsive.
System Administrator at Tutt Bryant Group
They have been very responsive, helpful, and knowledgeable.
Systems Security Analyst & Deputy Security Officer at a financial services firm with 201-500 employees
I would rate their customer support a ten out of ten.
Director, Managed Services at a consultancy with 11-50 employees
Their support is world-class.
Supervisor, Client Security at a consultancy with 11-50 employees
 

Scalability Issues

Sentiment score
7.4
Proofpoint Email Protection is cloud-based, scalable, and efficiently handles large email volumes, suitable for diverse enterprises despite licensing concerns.
Sentiment score
7.8
ThreatLocker Zero Trust Platform is scalable, user-friendly, and efficiently accommodates small to Fortune 500 companies with seamless integration.
Proofpoint is scalable for multi-site organizations with thousands of users.
Products and solutions director at ITVikings
The solution provides a graphical representation and dashboard view showing how many threats are getting blocked on a daily and monthly basis.
Information Technology Team Lead at a manufacturing company with 201-500 employees
Proofpoint Email Protection is considered to be highly scalable, designed for large enterprises, with a cloud-based architecture that offers an enormous number of options, including multi-organization support and high-volume email handling.
Senior Solution Delivery Lead Cybersecurity at International Olympic Committee – IOC
I started off with just the servers, and within a month and a half, I set up the entire company with ThreatLocker.
Technical Engineer at Cloud 1 Solutions
It seems to primarily operate on the endpoints rather than at a central location pushing out policies.
Systems Security Analyst & Deputy Security Officer at a financial services firm with 201-500 employees
ThreatLocker Zero Trust Endpoint Protection Platform scales very smoothly with our growing needs.
CEO at Mostro
 

Stability Issues

Sentiment score
8.3
Proofpoint Email Protection is stable and reliable, with occasional UI issues and rare outages, effectively managing email threats.
Sentiment score
7.7
ThreatLocker Zero Trust Platform is praised for stability and support, with minor issues primarily during initial policy tuning.
If Proofpoint Email Protection has an outage, we are either not receiving emails or not blocking the right threats.
Senior Security Engineer at Cloudflare
Regarding the stability and performance of Proofpoint Email Protection, I have not experienced any crashes, downtimes, or performance issues.
Cyber Security Engineer at a financial services firm with 10,001+ employees
Proofpoint Email Protection is very stable and reliable, as it remains accessible at all times without issues, ensuring that data is available in real time.
Principal Consultant at Infosys
For five years, we have not had a problem.
Supervisor, Client Security at a consultancy with 11-50 employees
Once deployed, it downloads the policies locally, so even if the computer doesn't have internet, it doesn't matter.
Information Cybersecurity Technology Specialist at Freez.it
It has been very stable, reliable, and accessible.
COO at Panda Technology
 

Room For Improvement

Proofpoint Email Protection needs improved integration, user interface, reporting, AI, affordability, deployment, support, and admin features.
Improving identity management, integration, compatibility, UI, network control, and training will enhance ThreatLocker Zero Trust Platform's usability and efficiency.
The older legacy user interface just took a little to work with, and the new unified interface, as it was able to do more and more of the functionality of the old one, the product just got easier and easier to use.
Sr Security Engineer at a comms service provider with 201-500 employees
In addition to the UI improvements, I would appreciate an increase in the speed of the tasks being processed on the pod.
Security Specialist at a leisure / travel company with 10,001+ employees
There are pros and cons to that, but I would suggest maintaining a good balance between security protection and operational impact.
Senior Security Engineer at Cloudflare
Controlling the cloud environment, not just endpoints, is crucial.
COO at Panda Technology
ThreatLocker Zero Trust Endpoint Protection Platform could improve by being a little more hands-off, perhaps by having a team inside ThreatLocker that does all the vetting of patches; having one person hired by ThreatLocker to check out patches means that a million other industries using ThreatLocker Zero Trust Endpoint Protection Platform do not have to vet the same patch, ultimately saving time and money around the world.
Technical Support Engineer at CMIT Solutions of Central Orlando
This feedback would help us understand what is learned in real-time, especially during a one-hour learning mode setup, ensuring we remain aware of potentially unnecessary learned items.
Server Administrator at Clay County Sheriff's Office
 

Setup Cost

Proofpoint Email Protection is a premium solution, costing more than competitors, but offers comprehensive security features that users value.
ThreatLocker Zero Trust Platform offers cost-effective, scalable solutions with flexible pricing and included onboarding, praised for diverse organizational needs.
Customers pay around $90,000 yearly for a 1,000-user organization, with the subscription license being the main expense, apart from implementation fees.
Products and solutions director at ITVikings
Given my other experience with other vendors, I think they are a bit on the high end and a bit on the pricey end for the email security functionality that we were using.
Sr Security Engineer at a comms service provider with 201-500 employees
Although it is a bit costly compared to Mimecast, Defender, and Cofense Vision, it is efficient and strong in security, so I do not mind the cost because I will not reduce my security risk.
Senior Solution Delivery Lead Cybersecurity at International Olympic Committee – IOC
After conversations with other partners, it became clear we underpriced it initially, which caused most of our issues.
Director, Managed Services at a consultancy with 11-50 employees
We are moving towards the Unified solution, where they basically bundle everything together, providing us better stability with the ability to bring in new product offerings without having to go back to the customer and say, 'This is going to cost you.'
Supervisor, Client Security at a consultancy with 11-50 employees
Money is saved because it is not costly, and I would suggest it for other companies.
Helpdesk Engineer at Computer Network Infrastructure (CNI) Consultants
 

Valuable Features

Proofpoint Email Protection enhances security with filtering, sandboxing, and threat visibility, improving efficiency and protecting against phishing and malware.
ThreatLocker Zero Trust Platform enhances security with application control, just-in-time access, and centralized management, simplifying operations efficiently.
Without Proofpoint Email Protection, most of these emails would have come through, slipped through Exchange, gotten into the user's mailbox, and created a lot of trouble for the organization.
Cyber Security Engineer at IT Naturally
Proofpoint Email Protection has positively impacted my organization by ensuring we are not at risk of a breach through email.
Release lead at a financial services firm with 10,001+ employees
TAP alerts, where Proofpoint Email Protection scans emails and sends alerts, provide the ability to review suspicious emails and validate them in a sandbox environment.
Infrastructure Analyst at a consultancy with 51-200 employees
ThreatLocker Zero Trust Endpoint Protection Platform's ability to block access to unauthorized applications has been excellent.
Cyber Security Specialist at Bremmar Consulting
It protects our customers.
CTO at Zettabytes
The major benefit is fewer breaches overall, as nothing can be run without prior approval. This helps my company protect its data and secure itself effectively.
Tier 1 IT Engineer at a retailer with 11-50 employees
 

Categories and Ranking

Proofpoint Email Protection
Ranking in Advanced Threat Protection (ATP)
3rd
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
94
Ranking in other categories
Email Security (1st), Digital Risk Protection (3rd), Office 365 Protection (1st), Secure Email Gateway (SEG) (2nd)
ThreatLocker Zero Trust Pla...
Ranking in Advanced Threat Protection (ATP)
7th
Average Rating
9.2
Reviews Sentiment
7.1
Number of Reviews
74
Ranking in other categories
Network Access Control (NAC) (4th), Endpoint Protection Platform (EPP) (6th), Application Control (1st), ZTNA (4th), Ransomware Protection (1st)
 

Mindshare comparison

As of March 2026, in the Advanced Threat Protection (ATP) category, the mindshare of Proofpoint Email Protection is 5.3%, down from 12.0% compared to the previous year. The mindshare of ThreatLocker Zero Trust Platform is 2.6%, up from 2.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Advanced Threat Protection (ATP) Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection5.3%
ThreatLocker Zero Trust Endpoint Protection Platform2.6%
Other92.1%
Advanced Threat Protection (ATP)
 

Featured Reviews

AshishKochhar - PeerSpot reviewer
Information Technology Team Lead at a manufacturing company with 201-500 employees
Advanced email protection has blocked targeted attacks and reduces manual threat handling
I feel Proofpoint Email Protection is overpriced. I cannot say that the security level being provided does not justify the cost, but when comparing the similar level of security with other applications or security systems, it is overpriced. If Proofpoint could provide offers or discounts for customers who are already using the product or for new customers implementing it, along with some free services or add-ons, that would be helpful in terms of financial expense. Proofpoint Email Protection has recently introduced AI functionality in terms of data security capabilities and protecting AI assistance from targeted attacks. This is important since everything is now related to AI. The solution is doing threat detection and real-time threat detection and response pretty well. There are a few things I would like to see improved. Sometimes Proofpoint Email Protection takes time to analyze the workflow and the nature of the email. In this age of AI, the solution should analyze an email on the first receipt and determine whether it should pass or be marked as spam without checking previous data. Another improvement would be to have a more user-friendly dashboard. Additionally, if Proofpoint could add the same features in BCP as part of email protection in BCP, it would be helpful since I currently have to take a different add-on for BCP, and integrating it would save costs. I cannot say that threats have increased or decreased with Proofpoint Email Protection because it depends on the mail flow. The solution captures and filters out all threats, and the email threats vary every day depending on how many users are receiving how many emails per day. Today there might be 1,000 emails, tomorrow 5,000, and the day after 500. Proofpoint Email Protection does its job by scanning all emails and threats are reduced to some extent. Since I am aware that virus definitions are updated every day, I cannot blame Proofpoint Email Protection if they take time to determine the nature of an email being received. There are sometimes emails that are false positives, and Proofpoint Email Protection is a bit strict in analyzing false positives, sometimes stopping emails that are actually required. It analyzes the previous nature of an email and if a template looks like an informational template or related to spam, it blocks it because it looks similar to one blocked earlier. However, the template might actually be required. If I receive the same template today that is also blocked by Proofpoint Email Protection, that particular template might be useful and should not be blocked. In such cases, I have to raise it as a false positive stating that this is something in use or my users use and should be released. When AI starts doing its work, it analyzes the email from a sender with a particular template and releases it, but if the same email and template come from another sender, it blocks it according to the policies.
Santo Joy - PeerSpot reviewer
Head Of Cyber Security at a outsourcing company with 201-500 employees
Security controls have been strengthened with granular application, ringfencing, and access policies
The features of ThreatLocker Zero Trust Endpoint Protection Platform that I like the most are the Ringfencing, elevation control, storage control, and application whitelisting functionality. For examples of how these features benefit my company, we were looking for a solution across various vendors to actually implement application whitelisting controls. ThreatLocker's agent, which is very lightweight and does not use much CPU or RAM, helped us achieve that solution. Ringfencing was an add-on that ticked off a lot of Australian framework security controls, which is the reason we chose it. My impression of the allowlisting feature in terms of managing which software, scripts, and libraries run on my devices is that ThreatLocker's community page has a lot of information around this, which is very helpful. Not only that, the Cyber Hero support that ThreatLocker provides gives us insights and best practices, helping us achieve that solution and guiding us to the right platform. The impact of Ringfencing on controlling the behavior of approved applications has been a big winner for us because it is something that many other platforms do not provide as a functionality. Having that allowed us to identify what applications talk to each other, which is something that many other platforms do not do. The network control feature impacts my ability to manage network traffic across my endpoints and servers. We have not used this widely across all our partners, but wherever required, we use it. It has been an easy solution for those customers to get that control implemented. The elevation feature's role in facilitating just-in-time administrative access for approved applications shows that elevation control helps in many use cases involving remote control platforms, door usage, and security system platforms that require local admins. There are many solutions that provide this functionality, but the licensing cost seems to be expensive, and it also adds another solution into the mix. Rather than doing that, we try to use ThreatLocker Zero Trust Endpoint Protection Platform to achieve that control. Regarding the storage control feature, I have used it. The primary function is USB blocking, which is very widely adopted, and also just locking down and allowing certain users to access certain file locations helps us there. When it comes to enforcing policy-driven access over various storage devices, it depends on the business risk adapted by the companies that we support, but generally the use case is USB and external storage devices where companies know that is a risk, but they do not have appropriate solutions. There are EDR platforms that claim to do this, but ThreatLocker Zero Trust Endpoint Protection Platform does it at an advanced level. My assessment of the efficiency of the real-time threat intelligence and category controls employed by Web Control in blocking malicious and non-compliant sites leads me to think that Web Control is another functionality within ThreatLocker Zero Trust Endpoint Protection Platform that is an add-on on top of the current set. That is another solution that we use based on what is required for the company, but again, that is not widely adapted yet for our partners.
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Manufacturing Company
9%
Computer Software Company
9%
Comms Service Provider
6%
Computer Software Company
17%
Manufacturing Company
8%
Retailer
8%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business28
Midsize Enterprise24
Large Enterprise43
By reviewers
Company SizeCount
Small Business51
Midsize Enterprise13
Large Enterprise8
 

Questions from the Community

What is your experience regarding pricing and costs for Proofpoint Email Protection?
I do not handle the pricing, setup cost, and licensing for Proofpoint Email Protection, but I think it's a bit pricey compared to other solutions, even though we found no competitor with comparable...
What needs improvement with Proofpoint Email Protection?
Some of the old portal features of Proofpoint Email Protection are missing in the new portal, so some of the settings could be modernized. The TRAP mail gateway product of Proofpoint Email Protecti...
What is your primary use case for Proofpoint Email Protection?
Proofpoint Email Protection is primarily used for anti-spam purposes. As other companies receive a lot of malware, phishing emails, and unwanted bulk email, Proofpoint Email Protection stops unwant...
What is your experience regarding pricing and costs for ThreatLocker Allowlisting?
My experience with pricing, setup cost, and licensing for ThreatLocker Zero Trust Endpoint Protection Platform is good because it has a nominal price.I would say ThreatLocker Zero Trust Endpoint Pr...
What needs improvement with ThreatLocker Allowlisting?
ThreatLocker Zero Trust Endpoint Protection Platform can be improved by providing admin rights that allow us to manage it from the server by providing some token IDs or any kind of OTP if someone h...
What is your primary use case for ThreatLocker Allowlisting?
My main use case for ThreatLocker Zero Trust Endpoint Protection Platform is to secure the server.A specific example of how I use ThreatLocker Zero Trust Endpoint Protection Platform to secure my s...
 

Also Known As

Proofpoint Enterprise Protection, Proofpoint Digital Protection
Protect, Allowlisting, Network Control, Ringfencing
 

Overview

 

Sample Customers

Blocket, University of Waterloo, Lincoln Memorial University, WellSpan Health, U-Haul, Carestream Health, Westinghouse
Information Not Available
Find out what your peers are saying about Proofpoint Email Protection vs. ThreatLocker Zero Trust Platform and other solutions. Updated: March 2026.
885,311 professionals have used our research since 2012.