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Check Point Harmony Email & Collaboration vs Mimecast Email Security comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Apr 20, 2025

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
7.4
Organizations saw increased productivity, cost savings, and enhanced security with Microsoft Defender for Office 365's advanced features.
Sentiment score
7.8
Check Point Harmony boosts ROI with enhanced security, reducing breaches and costs while improving productivity and protecting data.
Sentiment score
3.5
Mimecast Email Security prevents breaches and blocks phishing, significantly enhancing business security despite challenges in quantifying its ROI.
It has also decreased our time to detection and response by about 15 to 20 percent.
There is definitely a return on investment when using Mimecast, as it blocks phishing emails, reducing the risk of significant financial losses.
 

Customer Service

Sentiment score
6.9
Microsoft Defender for Office 365 support is praised for responsiveness but has inconsistencies, especially in first-level assistance.
Sentiment score
7.1
Check Point Harmony Email support receives mixed reviews; some praise responsiveness while others mention slow response and inefficiencies.
Sentiment score
5.5
Mimecast Email Security support is responsive but often redirects to unclear articles; mixed reviews on speed and flexibility.
Any issues are addressed quickly by Microsoft's support.
Customer service and support have been fantastic.
Customer support is of high quality.
I would rate customer support eight out of ten.
Support issues exist with the Check Point company itself, not necessarily the product.
Support personnel are hesitant to engage in remote sessions, preferring to share documentation via email.
Mimecast technical support is generally quite good.
 

Scalability Issues

Sentiment score
8.1
Microsoft Defender for Office 365 scales effectively, seamlessly expanding capacity with minimal maintenance, suitable for large and growing organizations.
Sentiment score
8.2
<p>Check Point Harmony Email &amp; Collaboration is a highly scalable, cloud-based platform, ideal for businesses of all sizes.</p>
Sentiment score
7.9
Mimecast Email Security is scalable, adaptable, and allows easy license adjustments but may face occasional feature challenges.
We have never faced scalability problems, and Microsoft manages it effectively.
I would rate the scalability of Check Point Harmony Email and Collaboration as nine out of ten, indicating high scalability.
 

Stability Issues

Sentiment score
7.7
Microsoft Defender for Office 365 is reliable, with 99.9% availability and efficient bug fixes, offering seamless performance and stability.
Sentiment score
8.0
<p>Check Point Harmony Email &amp; Collaboration is highly stable, offering reliable uptime, robust security features, and efficient cloud-based performance.</p>
Sentiment score
7.5
Mimecast Email Security is praised for stability and integration, with rare downtimes, few bugs, and high user satisfaction.
The solution is stable, as we have been using it for the past two years.
 

Room For Improvement

Microsoft Defender for Office 365 needs enhanced threat detection, integration, support, usability, documentation, and transparent pricing to address customer concerns.
Check Point Harmony needs project management, performance, scalability improvements, better integration, threat detection, technical support, and reduced deployment costs.
Mimecast Email Security struggles with detection, user interface, support, costs, configurations, and database reliance, affecting overall user satisfaction.
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS records like SPF, DKIM, and DMARC are not properly published.
The main area for improvement is simplifying the implementation and rollout process.
I would reduce the cost.
Check Point should integrate with features available in Barracuda - like more advanced threat management.
A lot of emails were missed despite being known samples.
 

Setup Cost

Microsoft Defender for Office 365, often pricey for SMEs, offers extensive security features with complex user-based licensing.
Check Point Harmony offers flexible per-user licensing, competitive features, and negotiable rates, appealing to growing companies.
Mimecast Email Security is seen as costly, though features and updates justify the price; competitors offer cheaper alternatives.
Microsoft is quite affordable with a lot of features available for any size organization.
Money-wise, it is a part of the Office 365 suite, making it slightly more expensive compared to Trend Micro.
I consider the pricing to be a bit expensive, similar to other solutions.
The pricing is lower compared to what I used before.
The pricing is reasonable, rated five out of ten for affordability.
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
 

Valuable Features

Microsoft Defender for Office 365 offers integrated protection with features like anti-malware and threat detection, enhancing security through AI.
<p>Check Point Harmony Email &amp; Collaboration offers robust threat protection, seamless Office 365 integration, and efficient data security for enterprises.</p>
Mimecast Email Security excels in threat protection, spam filtering, and user-friendliness, with strong Microsoft 365 integration and technical support.
It provides end-to-end visibility on email threats such as phishing, extending beyond Exchange Online Protection.
It ranks the threats and allows us to prioritize those hitting us the hardest, such as email threats.
Microsoft Defender for Office 365 is now part of a centralized tenant for my entire group.
The most valuable feature is spam detection and phishing site prevention, which Microsoft couldn't catch, yet Check Point does.
Check Point Harmony Email and Collaboration offers online support and has tight integration with Microsoft.
The protection and scanning of emails are also appreciated, as they secure everything in the email spectrum.
One of the most useful features is the threat remediation module, which can be used to remove malicious emails that may have been delivered or manually remove them.
A distinct advantage of Mimecast is its ability to block phishing and impostor attacks, which are significant threats currently.
 

Categories and Ranking

Microsoft Defender for Offi...
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Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
49
Ranking in other categories
Email Security (1st), Advanced Threat Protection (ATP) (1st), Microsoft Security Suite (11th)
Check Point Harmony Email &...
Average Rating
8.8
Reviews Sentiment
7.4
Number of Reviews
59
Ranking in other categories
Email Security (7th), Data Loss Prevention (DLP) (5th), Cloud Workload Protection Platforms (CWPP) (11th)
Mimecast Email Security
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
30
Ranking in other categories
Office 365 Protection (5th), Secure Email Gateway (SEG) (3rd)
 

Mindshare comparison

Email Security
Secure Email Gateway (SEG)
 

Featured Reviews

Tolu Omolaja - PeerSpot reviewer
Great URL scanning and attachment scanning, but I would like more proactive threat analysis
The two main features that prove most beneficial for us are URL scanning and attachment scanning. URL scanning involves an automatic scan of links and emails. When a user clicks on a link within an email, the system promptly checks the link's safety. If the link is deemed safe, access is granted automatically. However, if it is flagged as unsafe, we receive feedback and notification to caution us about the potentially harmful link. At this point, we are presented with the option to proceed or return. I have personally witnessed the system identify a few unsafe links, making this the primary advantage of using the solution. The second crucial aspect is the scanning of attachments. When an email containing an attachment arrives, we receive a notification of the new email, along with information that the attachment is being scanned for threats. This additional layer of security provides peace of mind for our organization. While Microsoft Defender for Office 365 offers numerous features, these two stand out as particularly impressive and valuable to us.
Rahul Kamble. - PeerSpot reviewer
Offers complete detection and simple management and is a user-friendly solution
It's very effective as a solution to prevent mobile app threats. It has a mobile MDX, mobile detection, and response session. As a comprehensive solution, Check Point offers a very granular and best-in-class experience. Compared to competitors like Fortinet, Trend Micro, Palo Alto, and Cisco, Check Point provides a superior solution according to both the MITRE and Gartner frameworks. For example, in a recent attack simulation, Check Point only allowed ten malicious emails through, while Fortinet allowed 1500 and Cisco allowed 1800. Check Point's email attack ratio is nearly 0.10%, while others range from 1% to 3%. This demonstrates Check Point's superior email filtering capabilities. Check Point's email cleaning ratio is 99.9%, significantly higher than the 98%, 95%, or 93% of its competitors. Moreover, Check Point Harmony Email incorporates AI technology within its security features. Harmony Email & Collaboration (HEC) provides full protection and addresses zero-day files. It's the best solution available, as others don't offer protection against zero-day attacks and rely on signature-based solutions. HEC is truly the best option.
Frank Rawson - PeerSpot reviewer
It gives clients peace of mind and helps them educate their users about threats
A few years ago, our team found the implementation to be somewhat challenging. It has gotten easier as we've grown more experienced. The difficulty depends on the expertise of the person doing it. I don't work with Mimecast every day, so it might be more difficult for me than it is for one of my techs who regularly does Mimecast implementations. It requires some specific in-depth product knowledge and an understanding of email solutions. The deployment time varies. In South Africa, it depends on who you use to deploy it. If you use one of Mimecast's local partners, it can take up to two weeks because of their process. However, it's only about four to eight hours of work. After deployment, there isn't much maintenance aside from supporting and educating your customers. Users require constant education on how to use the Mimecast client and release an email that has been blocked.
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
18%
Financial Services Firm
9%
Manufacturing Company
8%
Government
5%
Computer Software Company
15%
Financial Services Firm
8%
Manufacturing Company
7%
Construction Company
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Microsoft Defender for Office 365?
Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of variou...
What is your experience regarding pricing and costs for Microsoft Defender for Office 365?
Money-wise, it is a part of the Office 365 ( /products/office-365-reviews ) suite, making it slightly more expensive ...
What needs improvement with Microsoft Defender for Office 365?
The main area for improvement is simplifying the implementation and rollout process. There are many conditions to be ...
What is your primary use case for Check Point Harmony Email & Office?
We are using Check Point Harmony Email &amp; Collaboration to protect our organization from phishing attacks. For exa...
What do you like most about Check Point Harmony Email & Office?
The product offers good and easy integration capabilities with other products.
What do you like most about Mimecast Email Security with Targeted Threat Protection?
The interface of this solution is very easy to navigate and user-friendly. There is no delivery in email and other co...
What is your experience regarding pricing and costs for Mimecast Email Security with Targeted Threat Protection?
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
What needs improvement with Mimecast Email Security with Targeted Threat Protection?
There is nothing that notably stands out in need of improvement at present.
 

Also Known As

MS Defender for Office 365
Check Point CloudGuard, Check Point CloudGuard SaaS , Check Point Harmony Email & Office
Mimecast Email Security with Targeted Threat Protection
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Helvetia, Denham Capital, Daymark Solutions, Neopharm Group
Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Find out what your peers are saying about Check Point Harmony Email & Collaboration vs. Mimecast Email Security and other solutions. Updated: January 2024.
849,686 professionals have used our research since 2012.