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Check Point Email Security (formerly Harmony Email & Collaboration) vs Sublime Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 24, 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
6.8
Check Point Email Security boosts ROI by reducing phishing incidents, minimizing IT reliance, and enhancing operational efficiency.
Sentiment score
4.4
Sublime Security cuts fraud and costs, speeds up email investigations, and reduces phishing risks with automatic analysis.
The time saved during investigations is significant due to the neat dashboard that organizes everything related to alerts.
Pre Sales Consultant at Redington Group
We have gone from three to four successful phishing attacks every year to a maximum of one.
Network Cyber Security Specialist at a tech services company with 51-200 employees
There has been a 70% decrease in phishing emails and data breaches since implementing Check Point Harmony Email Security.
Account Manager at iValue Group
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
 

Customer Service

Sentiment score
6.7
Check Point Email Security offers prompt, knowledgeable support, though some report delays and time-consuming interactions during high-severity issues.
Sentiment score
6.4
Sublime Security is praised for responsive, knowledgeable support, efficient setup, and effective communication, leading to positive client feedback.
Their technical support is proficient at resolving issues within their scope, providing excellent problem-solving assistance and guidance.
Manager, Information Technology at a hospitality company with 201-500 employees
We opted for the 24/7 premium support, which is very responsive and quick whenever we have configuration challenges or other inquiries.
Pre Sales Consultant at Redington Group
We understand that with respect to SLA, but we expect they can go beyond SLA and provide quick support for the client.
Sr. Technical Specialist at Softcell Technologies Limited
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
 

Scalability Issues

Sentiment score
7.5
Check Point Email Security offers seamless scalability for organizations, effortlessly integrating with systems and accommodating growth needs.
Sentiment score
7.4
Sublime Security excels in scalability, efficiently handling large volumes and threats with minimal resource use and seamless expansion.
I would rate the scalability of Check Point Harmony Email and Collaboration as nine out of ten, indicating high scalability.
Cyber security manager at a government with 1,001-5,000 employees
If I want to scale this product to 2,000 users or 5,000 users, it can scale within no time, so that is not an issue.
Cybersecurity And Information Governance Head at Aeren
Scalability is limited, being only integrated with Microsoft Office 365 and G Suite at present.
Technical Specialist at Softcell Technologies Limited
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
 

Stability Issues

Sentiment score
8.1
Check Point Email Security is highly stable, reliable, and effectively manages email threats with minimal downtime and quick issue resolution.
Sentiment score
8.7
Sublime Security is praised for its exceptional stability, efficient performance, and reliable infrastructure, effectively satisfying demanding client expectations.
The platform is very stable; we have not encountered any downtime or stability-related issues.
Ingeniero en seguridad informática at Elcatex
Over these eighteen months I have been working with the product, it has been very stable, and I would recommend it to most of my peers who have issues related to the email security piece.
Associate Vice President at Novac Technology Solutions
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

Check Point Email Security needs better dashboard, deployment, integration, support, reporting, documentation, and more competitive pricing and customization.
Sublime Security needs better reporting, integration, documentation, pricing, threat visibility, customization, automation, and performance to attract more users.
Updates based on AI and reduced administrative overhead by adding or bulk adding new users, along with graphical enhancements to the GUI, would also be beneficial.
Technical Specialist at Softcell Technologies Limited
Enhancing reporting capabilities with customizable and advanced analytics features would greatly improve our ability to detect trends and proactively address emerging threats.
Pre Sales Consultant at Redington Group
The current system, being tied directly to the mailbox instead of requiring MX record verification, allows new mailboxes to function immediately after Microsoft activation.
Manager, Information Technology at a hospitality company with 201-500 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

Check Point Email Security offers robust features and flexible licensing, making it attractive and valuable despite higher pricing.
Enterprise buyers find Sublime Security competitively priced on AWS Marketplace, offering good value despite slightly higher costs than some alternatives.
Pricing is a bit expensive, but it is worth it considering the features that Check Point provides.
Technical Specialist at Softcell Technologies Limited
I consider the pricing to be a bit expensive, similar to other solutions.
Technical Director at Geekz Information Technology
The pricing is lower compared to what I used before.
Cyber security manager at a government with 1,001-5,000 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

Check Point Email Security offers AI threat intelligence, phishing protection, seamless integration, and enhanced data protection for less manual effort.
Sublime Security enhances email protection with AI-driven phishing detection, customizable rules, and seamless integration with Microsoft and Google.
I haven't had any users accidentally click on something problematic since implementing the product, which speaks to its efficacy.
Manager, Information Technology at a hospitality company with 201-500 employees
For us, I prefer Check Point before Palo Alto and before other brands because Check Point is most effective in attack mitigation and attack detection.
Cybersecurity & Networking Professional at Quantic Technology
The most valuable feature is spam detection and phishing site prevention, which Microsoft couldn't catch, yet Check Point does.
Head of Operations at DNI
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
 

Categories and Ranking

Check Point Email Security ...
Ranking in Email Security
3rd
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
99
Ranking in other categories
Data Loss Prevention (DLP) (3rd), Cloud Workload Protection Platforms (CWPP) (7th)
Sublime Security
Ranking in Email Security
19th
Average Rating
9.0
Reviews Sentiment
6.6
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Email Security category, the mindshare of Check Point Email Security (formerly Harmony Email & Collaboration) is 4.2%, down from 5.2% compared to the previous year. The mindshare of Sublime Security is 1.2%, down from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Check Point Email Security (formerly Harmony Email & Collaboration)4.2%
Sublime Security1.2%
Other94.6%
Email Security
 

Featured Reviews

Harish (Kumar) - PeerSpot reviewer
Cybersecurity And Information Governance Head at Aeren
Email security has blocked sophisticated phishing and now protects inboxes with AI detection
The only challenge with Check Point Email Security (formerly Harmony Email & Collaboration) is that it is an API-based solution. In an API-based solution, the major challenge is that it can read email content and Google Drive content. This presents a data privacy challenge, and we had to mitigate it by signing a Data Processing Agreement and other agreements. Because it is not a traditional in-line solution, Check Point Email Security (formerly Harmony Email & Collaboration) connects with Google Workspace using API permission and can access email, attachments, sender, recipient information, links, and all metadata is with Check Point. Data storage and everything else is with Check Point, which is the challenge. This solution has a drawback because of API deployment, while other solutions are traditional secure email gateways that are in-line solutions. In those solutions, we need to change the MX record, but with this solution we do not need to change the MX record, which is a pro of API-based deployment. However, there is also a con in that with API solutions, the email is scanned but after delivery in the mailbox.
reviewer2764257 - PeerSpot reviewer
Manager Security Operations Center at a educational organization with 10,001+ employees
Improves decision-making with clear verdict explanations and works well across multiple environments
I know that a lot of time has been invested in improving the efficacy of the platform, and it shows; it performs very well. Moving forward, I think our focus should be on how to achieve better integration with other systems. 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. This would allow it to be integrated more closely with the workflows of various teams and could potentially increase its market appeal. From my perspective, the tool itself functions exceptionally well, which gives me confidence in the system. I want to see this functionality extend to other tools that I use, enabling faster automation and improved workflows for the team, particularly from a security operations standpoint. I have no critiques regarding the tool itself. They've done an outstanding job and are maintaining high quality throughout their development process. They have a great product, and it's essential that they continue to uphold that standard, even though it requires significant effort.
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Top Industries

By visitors reading reviews
Outsourcing Company
13%
Computer Software Company
9%
Construction Company
9%
Financial Services Firm
8%
Outsourcing Company
11%
Computer Software Company
9%
Financial Services Firm
9%
Marketing Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business72
Midsize Enterprise24
Large Enterprise37
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise5
Large Enterprise7
 

Questions from the Community

What is your experience regarding pricing and costs for Check Point Harmony Email & Office?
We are not currently using this product. Six months back, we removed that product due to a few issues. The major issue is naturally the budget, as it is expensive. Our organization is expanding and...
What is your primary use case for Check Point Harmony Email & Office?
The major use case for Check Point Email Security (formerly Harmony Email & Collaboration) was Business Email Compromise, CEO fraud, and vendor impersonation. Phishing attacks were also a major...
What needs improvement with Check Point Harmony Email & Office?
The only challenge with Check Point Email Security (formerly Harmony Email & Collaboration) is that it is an API-based solution. In an API-based solution, the major challenge is that it can rea...
What is your experience regarding pricing and costs for Sublime Security?
My experience with pricing, setup cost, and licensing is limited, but I noticed that Sublime Security was slightly more expensive than Avanan or Defender, as Defender comes included with other Micr...
What needs improvement with Sublime Security?
I would say there are very minimal changes needed regarding Sublime Security; for first-time users, it can be difficult knowing how to write the tool. Having some templates available would improve ...
What is your primary use case for Sublime Security?
My main use case for Sublime Security is to test how this product works, so I am using this for that purpose. For a quick specific example of what I tested with Sublime Security, it detects the ema...
 

Also Known As

Check Point CloudGuard, Check Point CloudGuard SaaS , Check Point Harmony Email & Office
No data available
 

Overview

 

Sample Customers

Helvetia, Denham Capital, Daymark Solutions, Neopharm Group
Snowflake, Spotify, Anduril, Elastic, Compass, Encompass Health, Zscaler, Ovo Energy, Personio, Beneteler 
Find out what your peers are saying about Check Point Email Security (formerly Harmony Email & Collaboration) vs. Sublime Security and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.