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Proofpoint Email Protection vs Sublime Security 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:
 

ROI

Sentiment score
5.0
Proofpoint Email Protection reduces phishing, streamlines operations, improves email hygiene, lowers security incidents, and enhances financial management.
Sentiment score
4.5
Sublime Security reduces security risks and costs, enhances efficiency, and streamlines email investigations, improving organizational operations.
The ideal situation would be to have all these portals combined into one unified dashboard.
Information Security Architect at Loews Hotels
After Proofpoint Email Protection, phishing has been completely eliminated, so it is working very efficiently.
Security Engineer at News Corp
Instead of individually logging into five portals, we can log into one and they all connect as if we had logged into all of them.
SOC at a financial services firm with 201-500 employees
Importantly, we didn’t need to hire any additional staff; we were able to absorb this responsibility using our existing team.
Manager Security Operations Center at a educational organization with 10,001+ employees
I estimate that we have improved our efficiency, especially for phishing campaigns where we can handle multiple similar emails together, which has reduced repetitive analyst work and improved our response time.
Soc Analyst at a manufacturing company with 10,001+ employees
I think the ROI for us is primarily in reduced security risk and reduced analyst time.
Technical Lead at a consultancy with 11-50 employees
 

Customer Service

Sentiment score
7.2
Proofpoint Email Protection receives high praise for support, with minor suggestions for improving response times and consistency.
Sentiment score
6.3
Sublime Security offers highly rated customer support with efficient responses, expert teams, and excellent communication channels for quick resolutions.
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
We were able to get in touch with the person who constructed the LLM and its agentic aspects relatively quickly to address our questions.
Manager Security Operations Center at a educational organization with 10,001+ employees
They're able to understand the context of an incident rather than just treating it as a generic support ticket.
Technical Lead at a consultancy with 11-50 employees
I would rate customer support ten out of ten.
Soc Analyst at a manufacturing company with 10,001+ employees
 

Scalability Issues

Sentiment score
7.4
Proofpoint Email Protection is praised for its scalability, flexibility, and seamless integration, effectively supporting large enterprises and diverse environments.
Sentiment score
7.1
Sublime Security is highly scalable and resource-efficient, effectively handling large email volumes across Microsoft 365 and Google Workspace.
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 1,001-5,000 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
Despite nearly doubling the number of mailboxes and adding significantly more detection rules, the service remains just as fast as it was when we first implemented it.
Manager Security Operations Center at a educational organization with 10,001+ employees
Its scalability is also good, as it can scale with the number of protected mailboxes or users, or as email volume grows, supporting enterprise development across Microsoft 365 or Google Workspace.
Soc Analyst at a manufacturing company with 10,001+ employees
We have a fairly large Microsoft 365 environment and haven't had any problems with the platform keeping up with our email volume.
Technical Lead at a consultancy with 11-50 employees
 

Stability Issues

Sentiment score
8.3
Proofpoint Email Protection offers reliable performance, handles high volumes well, and ensures dependable stability with minimal disruptions.
Sentiment score
8.7
Sublime Security offers stable, reliable email security with quick performance, efficient threat detection, and no downtime or crashes.
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
Sublime Security acted quickly; once Microsoft alerted Outlook about the incoming email, Sublime Security managed to pull it from the stream before it had a chance to appear in the user's inbox.
Manager Security Operations Center at a educational organization with 10,001+ employees
 

Room For Improvement

Proofpoint Email Protection requires better AI, usability, and support, addressing high costs and inefficiencies to improve security and productivity.
Sublime Security should enhance user onboarding, integration, customization, and reporting while addressing pricing and reducing false positives.
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
Often I have to prepare reports for our CEOs, and they want it in a less technical way, a simpler view of things such as threats blocked, incidents investigated, and overall risk reduction.
Technical Lead at a consultancy with 11-50 employees
While they do provide API-level access and web hooks, I believe more out-of-the-box integrations with SOAR platforms and SIEM tools would enhance Sublime's value.
Manager Security Operations Center at a educational organization with 10,001+ employees
One breach could potentially put a small company out of business, so having a tool such as this might save them from that fate.
Partner Account Manager at a wholesaler/distributor with 51-200 employees
 

Setup Cost

Proofpoint Email Protection costs $2-$7/user/month, seen as high, but justified by its robust security features.
Sublime Security's pricing is higher but justified by effective threat prevention, with competitive AWS Marketplace setup and licensing.
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
I can also understand why some people might say it's expensive.
Technical Lead at a consultancy with 11-50 employees
It's competitive with its peers, especially for the number of mailboxes we have.
Manager Security Operations Center at a educational organization with 10,001+ employees
 

Valuable Features

Proofpoint Email Protection enhances security with advanced threat detection, customizable policies, and integration, reducing phishing and administrative workload.
Sublime Security offers advanced phishing detection, AI analysis, and automated threat responses, enhancing email security and reducing manual efforts.
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
This level of detail is essential for analysts and anyone conducting evaluations, as it helps them understand the specific circumstances of their environment.
Manager Security Operations Center at a educational organization with 10,001+ employees
It adds a smarter layer that catches anything missed by Microsoft 365 or Google Workspace protection.
Partner Account Manager at a wholesaler/distributor with 51-200 employees
The best features of Sublime Security are advanced phishing and BEC detection, campaign grouping, threat hunting, and automated remediation.
Soc Analyst at a manufacturing company with 10,001+ employees
 

Categories and Ranking

Proofpoint Email Protection
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
110
Ranking in other categories
Advanced Threat Protection (ATP) (5th), Digital Risk Protection (5th), Office 365 Protection (1st), Secure Email Gateway (SEG) (1st)
Sublime Security
Ranking in Email Security
14th
Average Rating
9.0
Reviews Sentiment
6.5
Number of Reviews
7
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Email Security category, the mindshare of Proofpoint Email Protection is 5.9%, down from 7.2% compared to the previous year. The mindshare of Sublime Security is 1.1%, down from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection5.9%
Sublime Security1.1%
Other93.0%
Email Security
 

Featured Reviews

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.
reviewer2891127 - PeerSpot reviewer
Technical Lead at a consultancy with 11-50 employees
Email defenses have reduced manual phishing work and now give clear visibility into threats
I'd say the best features Sublime Security offers are the threat detection and investigation capabilities, which are probably the most valuable part for us. I particularly appreciate the visibility into the email activity and the ability to investigate suspicious messages and understand why something was flagged. I'd say the protection against more sophisticated phishing and business email compromise attacks is also important. Those are difficult to deal with because they don't always contain obvious malware. The investigation capabilities of Sublime Security stand out because they surface themselves in a very nice, obvious way. So when we are investigating, they're just easy to spot and easy to identify. The UI is very clear for us, and overall it's just what we would expect. Regarding Sublime Security's AI capabilities, I think it's honestly pretty good. I haven't had any issues with either the governance side or the security side. I think Sublime Security has been very accurate. For us, it's certainly stopped a lot of the manual investigation that we often do for phishing emails or malicious emails. Occasionally, it does give us false positives, but that's just a five-minute review of something, so it still cuts a lot of time down.
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Outsourcing Company
10%
Manufacturing Company
10%
Comms Service Provider
6%
Outsourcing Company
11%
Computer Software Company
8%
Financial Services Firm
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business31
Midsize Enterprise23
Large Enterprise62
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise5
Large Enterprise13
 

Questions from the Community

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...
What is your experience regarding pricing and costs for Sublime Security?
Pricing for Sublime Security seems appropriate for an enterprise security product. It's not really the cheapest option, but it benefits us. The overall cost does need to be considered against the s...
What needs improvement with Sublime Security?
The product is powerful, but I suppose there are areas where someone new to the platform needs some time to understand all of the available functionality. It can be quite a lot as a new user to abs...
What is your primary use case for Sublime Security?
Our primary use case for Sublime Security is email security, so we use Sublime Security to protect Microsoft 365 email against phishing, business email compromise, any malicious links and attachmen...
 

Also Known As

Proofpoint Enterprise Protection, Proofpoint Digital Protection
No data available
 

Overview

 

Sample Customers

Blocket, University of Waterloo, Lincoln Memorial University, WellSpan Health, U-Haul, Carestream Health, Westinghouse
Snowflake, Spotify, Anduril, Elastic, Compass, Encompass Health, Zscaler, Ovo Energy, Personio, Beneteler 
Find out what your peers are saying about Proofpoint Email Protection vs. Sublime Security and other solutions. Updated: November 2026.
920,769 professionals have used our research since 2012.