Check Point Email Security (formerly Harmony Email & Collaboration) vs Microsoft Defender for Office 365 comparison

Check Point Software Technologies and Microsoft are both solutions in the Email Security category. Check Point Software Technologies is ranked #3 with an average rating of 9.0, while Microsoft is ranked #2 with an average rating of 8.5. Check Point Software Technologies holds a 4.2% mindshare in Email Security, compared to Microsoft’s 6.1% mindshare. Additionally, 99% of Check Point Software Technologies users are willing to recommend the solution, compared to 96% of Microsoft users who would recommend it.

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Executive SummaryUpdated on Apr 24, 2026

Check Point Harmony Email & Collaboration and Microsoft Defender for Office 365 compete in the email and collaboration security domain. Given the data comparisons, Check Point appears to have an edge due to its extensive security features and adaptability across platforms.

Features: Check Point Harmony Email & Collaboration is known for its AI-powered threat intelligence, integration capabilities with Microsoft tools, and robust security portfolio. Its AI-driven detection helps in reducing spam and malicious emails efficiently. Microsoft Defender for Office 365 offers seamless security within the Microsoft ecosystem, integration with Office 365, and comprehensive threat protection, deeply embedded across Microsoft applications.

Room for Improvement: Check Point Harmony Email & Collaboration users suggest enhancing dashboard configuration, widening third-party integration, and improving reporting capabilities. Microsoft Defender for Office 365 users highlight a need for simpler navigation, better management of false positives, and enhanced integration with non-Microsoft tools.

Ease of Deployment and Customer Service: Check Point Harmony Email & Collaboration is recognized for robust deployment in various cloud environments, though customer support response times may be slow. Microsoft Defender for Office 365 offers centralized deployment within its ecosystem, though its complex pricing model can be a hurdle for some users.

Pricing and ROI: Check Point Harmony Email & Collaboration generally has a higher price point, justified by its robust features and ROI through reduced security incidents. Microsoft Defender for Office 365, often bundled with Office 365 licenses, presents a complex cost structure but provides good value due to its integration and security coverage within the Microsoft suite.

To learn more, read our detailed Check Point Email Security (formerly Harmony Email & Collaboration) vs. Microsoft Defender for Office 365 Report (Updated: June 2026).

Buyer's Guide

Check Point Email Security (formerly Harmony Email & Collaboration) vs. Microsoft Defender for Office 365

June 2026

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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

Cloudflare One

Mindshare comparison

As of July 2026, in the Email Security category, the mindshare of Cloudflare One is 1.7%, up from 1.5% compared to the previous year. The mindshare of Check Point Email Security (formerly Harmony Email & Collaboration) is 4.2%, down from 4.9% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 6.1%, down from 12.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Email Security Mindshare Distribution
Product	Mindshare (%)
Microsoft Defender for Office 365	6.1%
Check Point Email Security (formerly Harmony Email & Collaboration)	4.2%
Cloudflare One	1.7%
Other	88.0%

Email Security

Featured Reviews

Cobe Van Coller

Network Architect at IP Dimension

Cloud security has improved remote access and has reduced costs for smaller client sites

I have used Cloudflare One's Identity-Aware Proxy, and it is quite straightforward from what I have seen so far. The app registration on the Azure side integrates fully into Cloudflare, and I am very satisfied with that part because it is easy to set up. The integration of Cloudflare One's Secure Web Gateway and Zero Trust Network Access works without any issues. That part is pretty automatic, and if you complete the rest of the setup, it comes together by itself with no issues from my side. What makes it nice is that we can actually start replacing on-site firewalls at this stage for the smaller clients because it does not matter if they go to a coffee shop or work from home; they are still secured by the same connection. The hops get shorter and you get better latency. We have done testing to see if it is better. One thing that we did notice with our proof of concept with our current client is that they have people connecting from the UK. When they used their previous VPN solution, uploading CAD drawings and other files to the server took a long time. They mentioned that it is much quicker on Cloudflare One's solution. I definitely believe that is part of the improved performance, and I am satisfied with that as well. What is nice about Cloudflare One is that it makes the setup easier and also easier to train technicians to maintain it. Compared to legacy systems, we do not need to get fancy firewalls in place that are costly. That is definitely also a cost-saver with Cloudflare One.

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Harish (Kumar)

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.

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Emeka Ndulu

Cloud Solutions Architect at a tech services company with 201-500 employees

Improves threat visibility and response while reducing manual tasks and training users against phishing

I appreciate the attack simulation feature whereby I get to train users and educate them on how to identify phishing emails and spam emails, as well as the anti-spam protection. It gives me visibility into my threat environment and threat landscape to ensure that I am one step ahead of any likelihood of threats within my environment. I get to detect it and respond, so the threat intelligence is very effective. Microsoft security solutions save my time. It saves money because once I protect my environment, I don't lose money. It has decreased my detection time and my time to respond.

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Quotes from Members

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

Pros

"Cloudflare Zero Trust Platform removes the risk of exposing the applications to the public."

"Cloudflare One has assisted in securing my remote workforce through a SASE solution with Cloudflare One and the Workers part, although I am not currently using the Workers component."

"The best feature is rate limiting. If I'm expecting 500 visits per hour, Cloudflare will limit the requests if I suddenly get 50,000."

"Cloudflare Access is a stable solution."

"What makes it nice is that we can actually start replacing on-site firewalls at this stage for the smaller clients because it does not matter if they go to a coffee shop or work from home; they are still secured by the same connection."

"Cloudflare is simple to use."

"It's the endpoint exposition. We don't need to expose our VPN server to the internet and need a zero-test solution. I can apply some conditional access to the endpoint that's connecting to our network to check their security policies or the security condition of their workstation. Once the workstation is trying to connect to my internal network, then I would like to check the discrete condition of these endpoints that are trying to access my internal network. We created some conditional access. We have CrowdStrike, to check if the CrowdStrike is installed, to check if it's updated, and to check for Windows updates. We created some conditional policies to check it."

"Using Cloudflare One makes my work quite easy because for DDoS protection, all I need to do is understand the OSI model and click; it makes it easier than trying to write a command line or use a Linux command."

More Cloudflare One pros

"Being able to mass quarantine and remove emails from end users' mailboxes has become extremely important to us as we have grown in size."

"Robust inspection technologies have proven valuable in safeguarding shared files in collaborative environments by analyzing patterns and identifying potential threats."

"It is fast and quite effective in terms of preventing any security incidents."

"The product's initial setup phase is very simple and automated. Everything can be made ready within a few clicks."

"One of the best features is the analysis and emulation carried out with each file attached to the emails, which makes each of the deliveries we make via email more secure."

"It has just been phenomenal."

"Machine Learning and AI for email security have helped all the organization's members to guard their information against insecure exposure."

"It fully protects colleagues from visiting insecure sites and browsing in unhealthy environments."

More Check Point Email Security (formerly Harmony Email & Collaboration) pros

"Technical support is very good. They are knowledgeable and respond quickly."

"The feature of Microsoft Defender for Office 365 that I like the most is probably the email features specifically, because those are the ones that a typical end user will accidentally click on a link not knowing what it is, and it'll catch it, and then it'll feed it over to Defender and stop the attack from happening before it actually can."

"Microsoft so far has been good; we haven't faced any kind of disruption or anything else, it's a good product and good platform, I must say, and overall it's a good product and good service and we haven't dealt with bugs or glitches."

"The feature I like the most about Microsoft Defender for Office 365 is that it typically runs in the background—you do not know it is there until you need to access it."

"Does a thorough job of examining email and URLs for malicious content."

"Microsoft Defender for Office 365 is a stable solution."

"The most valuable feature of Microsoft Defender for Office 365 is its spam filter."

"Since we have started using the solution, there have been fewer compromises."

More Microsoft Defender for Office 365 pros

Cons

"The software has automated alerts, but the automated alerts are not available in the mobile app."

"For the topic of improvement, providing some training material is one of my suggestions."

"Feedback could be enhanced. While I work efficiently with Clover as a partner in Mexico City, sometimes the information and requests are easier to manage with more concrete solutions."

"The free plan has limitations. For example, I can only set up three rules, and the application firewall is unavailable."

"The tool should provide on-premise versions. Currently, all versions are cloud-based."

"Our customers no longer use Cloudflare because its service is subpar."

"The onboarding process can be improved a little bit."

"I would like them to include a VPN feature to provide a secure connection to the data center."

More Cloudflare One cons

"I notice that there are areas for improvement in email security, particularly regarding Data Loss Prevention (DLP). It has limited functionality on outgoing DLP, meaning if someone is sending a sensitive file, I cannot rely solely on this solution for protection."

"Improved support is needed as current support is slow."

"I would like Check Point to extend its coverage to include more cloud applications."

"The major issue is naturally the budget, as it is expensive."

"Currently, Check Point HEC supports only Microsoft Office 365 and Google Sheets. In today's world, some clients are using old email service provider solutions, so it would be better if HEC also provides support for third-party email service solutions, such as IBM HCL Notes, creating more opportunities."

"Integration is currently limited to Microsoft Office 365 and Google G Suite."

"A phishing simulator would be helpful as a user training module."

"During the East Coast server outage with Amazon service this week, mail was delivered and then pulled back because Harmony wasn't working properly and needed to scan it."

More Check Point Email Security (formerly Harmony Email & Collaboration) cons

"Microsoft Defender for Office 365 could improve by giving customers information on techniques to prevent threats. For example, information about best practices on how to protect their own devices against hackers and scammers, such as educational information or training. This would help others have a better understanding of cyber security. Additionally, there can be more security features added."

"There is room for improvement in terms of reporting."

"It would be better if it were more scalable. It depends on the architecture, but we would like to make it more scalable for both data centers."

"There's room for improvement regarding the time frame for retrieving emails."

"Sometimes, phishing emails manage to pass through the filter, so the system needs to enhance its phishing email detection capabilities."

"We need to be able to whitelist data at the backend."

"From a development point of view, if I wanted to do development on my actual machine where Defender is, the organization can set certain policies or Defender makes that prohibitive."

"Several simulation options are available within 365, and the phishing simulation could be better."

More Microsoft Defender for Office 365 cons

Pricing and Cost Advice

"The solution's pricing lacks transparency."

"The prices are slightly expensive."

"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."

"The pricing is somewhere in the middle. I would rate the pricing a seven out of ten."

"The pricing of the solution is cheap. The licensing cost is also very low. I rate the cost and pricing a three out of ten."

"The solution is not that expensive."

"My company has to make yearly payments towards the licensing costs attached to the solution. There are no hidden charges apart from the licensing costs of the solution."

"Cloudflare Zero Trust Platform's pricing is good."

"The pricing and licensing are always negotiable."

"Cost is the main concern that every customer takes into consideration, and Check Point always negotiates a price that is affordable."

"I rate the product's pricing a five on a scale of one to ten, where one is cheap, and ten is expensive."

"The product is expensive compared to some competitors, especially for the SME segment."

"There are absolutely no additional costs to the standard licensing fees. One of the wonderful pieces is that CloudGuard SaaS is all-inclusive in its licensing. There's no a-la-carte functionality. You're getting 100 percent of the product for the licensing that you're paying."

"The pricing is competitive."

"Check Point is more expensive. That's the honest truth. So far, it's a good value for the money."

"The cost is similar to other competitors. It's not much higher."

More Check Point Email Security (formerly Harmony Email & Collaboration) pricing and cost advice

"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."

"It is much more expensive than using another solution because we have had to include some options and upgrade our license."

"I was working in the government and it was too expensive for us to use our Microsoft products."

"Defender for 365 comes in various plans and licenses, along with other Microsoft security solutions. Purchasing this kind of package or security bundle gives good value for money, and that's what I recommend."

"The pricing is normal. Considering its popularity, it's not overpriced."

"Microsoft Defender for Office 365 comes with Microsoft Windows. It is free with the operating system."

"While Microsoft Defender for Office 365 necessitates pricier E3 or E5 subscriptions, the extensive functionality offered by these licenses across various Microsoft products justifies the investment."

"The license is expensive because the cost is based on the number of users."

More Microsoft Defender for Office 365 pricing and cost advice

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Top Industries

By visitors reading reviews

Construction Company

18%

Comms Service Provider

10%

Financial Services Firm

Outsourcing Company

11%

Computer Software Company

10%

Financial Services Firm

Construction Company

Computer Software Company

11%

Manufacturing Company

Financial Services Firm

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	1
Large Enterprise	12

By reviewers
Company Size	Count
Small Business	73
Midsize Enterprise	24
Large Enterprise	36

By reviewers
Company Size	Count
Small Business	24
Midsize Enterprise	11
Large Enterprise	32

Questions from the Community

What is your experience regarding pricing and costs for Cloudflare Zero Trust Platform?

Pricing is competitive. Akamai is more expensive, in my view.

See all answers

What needs improvement with Cloudflare Zero Trust Platform?

In my opinion, Cloudflare One can be improved mainly through compatibility, as the integration should be much simpler...

See all answers

What is your primary use case for Cloudflare Zero Trust Platform?

Cloudflare One's primary use case for my organization is to protect servers and to provide remote access with the VPN...

See all answers

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 issu...

See all answers

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 Com...

See all answers

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-...

See all answers

What is your experience regarding pricing and costs for Microsoft Defender for Office 365?

My experience with pricing, setup, and licensing is that it's actually quite reasonable even on the licensing side as...

See all answers

What needs improvement with Microsoft Defender for Office 365?

I think Microsoft Defender for Office 365 can be improved by creating more educational pieces about not just looking ...

See all answers

What is your primary use case for Microsoft Defender for Office 365?

My main use cases for Microsoft Defender for Office 365 include email hygiene.

See all answers

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Product Reports

Buyer's Guide

Cloudflare One

July 2026

Download Cloudflare One product report

Buyer's Guide

Check Point Email Security (formerly Harmony Email & Collaboration)

July 2026

Check Point Email Security (formerly Harmony Email & Collaboration) report

Download Check Point Email Security (formerly Harmony Email & Collaboration) product report

Buyer's Guide

Microsoft Defender for Office 365

July 2026

Microsoft Defender for Office 365 report

Download Microsoft Defender for Office 365 product report

Also Known As

Cloudflare Area 1 Email Security, Cloudflare Bot Management, Cloudflare Gateway, Cloudflare Zero Trust Platform, Cloudflare DDoS, Cloudflare SASE & SSE Platform

Check Point CloudGuard, Check Point CloudGuard SaaS , Check Point Harmony Email & Office

MS Defender for Office 365

Overview

Cloudflare One is a comprehensive platform for security, performance, and connectivity. It provides features like rate limiting, DDoS protection, and application access, tailored to enhance user experience while securing internet access and accelerating communications.

Designed to integrate security measures with ease of use and scalability, Cloudflare One offers a secure web gateway and zero trust network access. These features ensure seamless setup and operation, making connectivity reliable and protected. Users appreciate its integrated console, intuitive interface, and the ability to manage risk effectively. It offers straightforward deployment, improves latency, and boasts cost-effectiveness. While its onboarding process and documentation need enhancement, its value in content delivery and application shielding is notable. Despite challenges in integrating Cloudflare Access with existing VPNs and the need for better automation and support, it remains vital for DNS and infrastructure protection.

What features make Cloudflare One stand out?

Rate Limiting: Controls the traffic rate to prevent abuse.
DDoS Protection: Shields applications from distributed denial-of-service attacks.
Secure Web Gateway: Provides secure internet access with seamless operation.
Zero Trust Network Access: Ensures secure, application-based connectivity without relying on traditional VPNs.
Access for Connectivity: Facilitates access to internal applications securely.

What benefits should users look for in reviews?

Security: Robust measures for DNS and browsing protection.
Performance: Enhanced site accessibility and communication speed.
Cost-Effectiveness: Offers competitive pricing for its features.
Ease of Deployment: Straightforward and efficient setup process.

In industries like finance, retail, and technology, Cloudflare One is crucial for enabling secure remote access and protecting web applications against dynamic threats. It supports compliance access policies and enhances content delivery, playing a key role in safeguarding digital infrastructure.

Cloudflare

Check Point Harmony Email & Collaboration provides AI-powered security features for email and collaboration platforms, integrating with Microsoft 365 for comprehensive protection against phishing and malware threats.

Designed for seamless deployment, Check Point Harmony Email & Collaboration offers advanced protection with minimal false positives. Users benefit from real-time alerts, granular threat analysis, and intuitive operation. It supports API-based email security, ensuring safe communication channels and data protection. While it integrates smoothly with Microsoft 365, improvements in dashboard usability, stability, false positive reduction, and expanded integrations with non-Microsoft platforms can enhance the experience.

What are the key features of Check Point Harmony Email & Collaboration?

AI-Powered Threat Intelligence: Utilizes machine learning to detect and prevent emerging threats.
Seamless Office 365 Integration: Offers easy deployment and integration with Microsoft's suite.
Zero-Day Attack Prevention: Protects against unknown vulnerabilities with advanced sandboxing.
Robust Phishing Protection: Employs comprehensive techniques to block phishing attempts.
Advanced Sandboxing: Analyzes potential threats in a controlled environment to prevent breaches.
Comprehensive Dashboards: Provides insights with real-time threat monitoring and analysis.

What benefits or ROI should be considered?

Ease of Deployment: Simple setup process with minimal disruption to operations.
Cost-Effective Security: Reduces potential breach costs with proactive threat prevention.
Reduced False Positives: Minimizes unnecessary alerts, allowing teams to focus on real threats.
Enhanced Threat Visibility: Real-time analytics offer deeper understanding of security landscape.

In finance, healthcare, and education industries, Check Point Harmony Email & Collaboration is deployed to safeguard sensitive information and ensure unrestricted communication flow. These sectors value its ability to block suspicious emails, prevent data loss, and maintain compliance with industry regulations.

Check Point Software Technologies

Microsoft Defender for Office 365 offers real-time email security, enhancing threat detection through integration within the Microsoft ecosystem. Its user-friendly interface and central management streamline operations, providing robust protection against phishing, ransomware, and malware.

Defender for Office 365 is focused on efficiently securing email communication by safeguarding against phishing, malware, and spam threats. With its strong integration with other Microsoft services, it is tailored to improve endpoint security and identity protection. Its centralized management tools simplify threat prioritization, while the automated threat response capabilities ensure swift actions against potential risks. Organizations leverage its capabilities to efficiently manage their cybersecurity efforts, particularly in remote work environments, while maintaining a secure system across Office 365 applications and Azure-hosted services.

What are the key features?

Real-time Email Protection: Continuously monitors and protects email communications.
Safe Attachments and Links: Scans attachments and links for potential threats.
Anti-Phishing Measures: Provides tools to detect and block phishing attempts.
Integration with Microsoft Services: Seamlessly connects with other Microsoft applications for enhanced security.
Automated Threat Responses: Activates immediate responses to detected threats.

What benefits should users expect from reviews?

Time Savings: Automates processes to reduce manual threat management efforts.
Improved Cybersecurity: Strengthens organizational defenses against various cyber threats.
Efficient Remote Work: Enhances protection for remote teams and virtual collaborations.
Comprehensive Coverage: Extends protection across Office 365 and Azure services.

Implementations of Defender for Office 365 vary across industries, optimizing email security for sectors such as finance, healthcare, and education. In finance, it aids in protecting sensitive financial data from phishing and fraud. Healthcare benefits from secure communications, ensuring patient data privacy. Educational institutions use it to maintain secure virtual learning environments against cyber threats.

Microsoft

Sample Customers

23andMe

Helvetia, Denham Capital, Daymark Solutions, Neopharm Group

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.

Buyer's Guide

Check Point Email Security (formerly Harmony Email & Collaboration) vs. Microsoft Defender for Office 365

June 2026

Free Report: Check Point Email Security (formerly Harmony Email & Collaboration) vs. Microsoft Defender for Office 365

Find out what your peers are saying about Check Point Email Security (formerly Harmony Email & Collaboration) vs. Microsoft Defender for Office 365 and other solutions. Updated: June 2026.

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