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

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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:
 

Categories and Ranking

Cloudflare One
Sponsored
Ranking in Email Security
20th
Ranking in Data Loss Prevention (DLP)
22nd
Average Rating
8.6
Reviews Sentiment
6.5
Number of Reviews
23
Ranking in other categories
Secure Web Gateways (SWG) (13th), Cloud Access Security Brokers (CASB) (13th), Distributed Denial-of-Service (DDoS) Protection (9th), Software Defined WAN (SD-WAN) Solutions (12th), Access Management (11th), Bot Management (3rd), ZTNA as a Service (9th), ZTNA (4th), Secure Access Service Edge (SASE) (9th), Remote Browser Isolation (RBI) (3rd)
Check Point Email Security ...
Ranking in Email Security
3rd
Ranking in Data Loss Prevention (DLP)
3rd
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
99
Ranking in other categories
Cloud Workload Protection Platforms (CWPP) (5th)
Tessian Guardian
Ranking in Email Security
60th
Ranking in Data Loss Prevention (DLP)
62nd
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2026, in the Data Loss Prevention (DLP) category, the mindshare of Cloudflare One is 2.0%, up from 1.5% compared to the previous year. The mindshare of Check Point Email Security (formerly Harmony Email & Collaboration) is 1.7%, up from 1.5% compared to the previous year. The mindshare of Tessian Guardian is 0.5%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Data Loss Prevention (DLP) Mindshare Distribution
ProductMindshare (%)
Check Point Email Security (formerly Harmony Email & Collaboration)1.7%
Cloudflare One2.0%
Tessian Guardian0.5%
Other95.8%
Data Loss Prevention (DLP)
 

Featured Reviews

CV
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.
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.
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Top Industries

By visitors reading reviews
Construction Company
19%
Comms Service Provider
10%
Financial Services Firm
9%
Manufacturing Company
8%
Computer Software Company
11%
Financial Services Firm
9%
Construction Company
8%
Manufacturing Company
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise1
Large Enterprise12
By reviewers
Company SizeCount
Small Business70
Midsize Enterprise26
Large Enterprise33
No data available
 

Questions from the Community

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...
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...
What is your experience regarding pricing and costs for Check Point Harmony Email & Office?
Check Point Email Security (formerly Harmony Email & Collaboration) is reasonably priced.
What is your primary use case for Check Point Harmony Email & Office?
I use Check Point Email Security (formerly Harmony Email & Collaboration) for protecting my phishing email agains...
What needs improvement with Check Point Harmony Email & Office?
I notice that there are areas for improvement in email security, particularly regarding Data Loss Prevention (DLP). I...
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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
No data available
 

Overview

 

Sample Customers

23andMe
Helvetia, Denham Capital, Daymark Solutions, Neopharm Group
Affirm, Choate, BMA, Evercore, Gubra, Accel, Fieldfisher, Clearwater, Man Group plc, Graphcore, Investec, Rightmove
Find out what your peers are saying about Microsoft, Forcepoint, Check Point Software Technologies and others in Data Loss Prevention (DLP). Updated: June 2026.
903,257 professionals have used our research since 2012.