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Microsoft Exchange Online Protection (EOP) vs Trellix Email Security comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 18, 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
Average Rating
8.6
Reviews Sentiment
6.5
Number of Reviews
23
Ranking in other categories
Secure Web Gateways (SWG) (12th), Data Loss Prevention (DLP) (22nd), Cloud Access Security Brokers (CASB) (12th), Distributed Denial-of-Service (DDoS) Protection (8th), Software Defined WAN (SD-WAN) Solutions (13th), Access Management (12th), Bot Management (3rd), ZTNA as a Service (8th), ZTNA (4th), Secure Access Service Edge (SASE) (9th), Remote Browser Isolation (RBI) (2nd)
Microsoft Exchange Online P...
Ranking in Email Security
8th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Anti-Malware Tools (14th)
Trellix Email Security
Ranking in Email Security
15th
Average Rating
8.8
Reviews Sentiment
6.2
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Email Security category, the mindshare of Cloudflare One is 1.7%, up from 1.4% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 3.0%, down from 5.7% compared to the previous year. The mindshare of Trellix Email Security is 0.4%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Microsoft Exchange Online Protection (EOP)3.0%
Trellix Email Security0.4%
Cloudflare One1.7%
Other94.9%
Email Security
 

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.
NancyHartman - PeerSpot reviewer
Business Process Manager/ Educational Technologist at a educational organization with 1,001-5,000 employees
Layered email security has protected sensitive research and still flags phishing in real time
The valuable features of Microsoft Exchange Online Protection (EOP) include providing an additional layer of protection, as it builds on the basic Exchange level of security that allows us to get our work done. Another feature I appreciate is the ability to question things, as our Exchange server allows us to identify in real-time if an email is a phishing email or spam email. It really helps us identify risks, especially through our external exchanges via email or through our cloud-based platforms. Our Exchange system blocks any embedded AI from all our applications and products, so we cannot use embedded AI in our daily work from our official laptops because we have secure information. The system is quite locked down.
Anastasia Wairimu - PeerSpot reviewer
Team Manager at Ford
Gateway filtering has protected our organization and provides complete email threat prevention
In my opinion, the best features Trellix Email Security offers include its use for malware analysis as well as the enterprise-wide email quarantine system. My experience with the malware analysis and quarantine features is that they are easy to manage and they have been very effective because we have been able to quarantine any suspicious emails or prevent any attempt before it affects our systems. It is also very user-friendly and has a simple interface. Policies and rules are easy to create and they work with very little downtime or operational impact. Email delivery issues are easy to investigate and troubleshoot. Trellix Email Security has positively impacted my organization as it is user-friendly and does a good job detecting malicious attachments in email, providing complete email protection against all users and working well to stop advanced threats. The price is relatively the same as other competitors.

Quotes from Members

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

Pros

"I'm very satisfied with the environment and the dashboard."
"Cloudflare is by far the most effective solution that I have come across."
"For Cloudflare Access, I am using the free plan...The most valuable feature is their protection."
"It will take the blow rather than our applications should an attack occur."
"Cloudflare Access is a stable solution."
"It is a stable solution."
"Cloudflare is simple to use."
"Enables me to work from two locations."
"It offers great security against malware and other threats."
"I like the product's ZAP feature."
"We use the solution to receive emails. We do not use the calendar function as our clients are slow adaptors to the latest features."
"You can use the product to create special accounts."
"It is scalable."
"The valuable features of Microsoft Exchange Online Protection (EOP) include providing an additional layer of protection, as it builds on the basic Exchange level of security that allows us to get our work done."
"Online Protection's most valuable feature is its admin interface."
"It is easy to configure, easy to use, easy to add exclusions, easy to track, and easy to add anything else if you want."
"Compared to other email solutions such as Cisco, price-wise, we get this solution within 50 to 60% of the average."
"For email spam and malware threat prevention, Trellix Email Security just works and I really appreciate the product."
"Trellix Email Security has positively impacted my organization by providing us with a consolidated tool to manage all our email protection, and it is performing excellently."
"By using Trellix Email Security, we achieve reduced phishing attacks and ransomware risk from the email side, we are protected from advanced email threats and gain visibility of who is sending emails to our organization, and we achieve compliance of data protection, ensuring that we will not send sensitive data to the outside."
"The impact of Trellix Email Security is very good, with reporting showing that above 90% of threats have been blocked monthly, indicating that Trellix Email Security has helped protect us from cyberattacks."
"Trellix Email Security is quite valuable and definitely provides a massive return on investments."
"Trellix Email Security has positively impacted my organization as it is user-friendly and does a good job detecting malicious attachments in email, providing complete email protection against all users and working well to stop advanced threats."
"Overall, I find Trellix Email Security to be a mature and ready solution, delivering very good protection, and scalability-wise, it is very promising."
 

Cons

"Our customers no longer use Cloudflare because its service is subpar."
"Operating and tuning the product is difficult."
"Cloudflare One is not very powerful, but for what we require, it is basic and sufficient."
"They don't have a person to provide support for customers using the solution under their free plan."
"I would like them to include a VPN feature to provide a secure connection to the data center."
"The free plan has limitations. For example, I can only set up three rules, and the application firewall is unavailable."
"The onboarding process can be improved a little bit."
"When there are any dynamic changes in complex applications, the tool takes a lot of time, making its analytics-related area a major matter of concern where improvements are needed."
"Microsoft 365 Defender and EOP policies are stable with the proper license. However, with the basic policy, it's hard to say it's stable due to configuration limitations."
"It wasn't easy or intuitive enough for me to start using it. So, the reason was that the solution changed."
"Having orchestration features added to Microsoft Exchange Online Protection, particularly automation and remediation, would be quite useful."
"The tool's classification for bulk email is cumbersome."
"Not all settings can be configured automatically and most still require manual configuration. However, there is an automation tool available that can be used to input all the configurations either as a script or a tool it would be helpful."
"They should specify the difference between Defender for Office 365 and Exchange Online Protection."
"The licensing can be on the expensive side, especially in the cloud space."
"Our company faces difficulty with Microsoft Exchange Online Protection (EOP) because it's too big, clunky, and difficult for a small client to implement quickly and easily."
"The biggest area for improvement in Trellix Email Security is the pricing. The solution is quite expensive."
"I think Trellix Email Security needs to improve different sides of email security, especially the filtering process."
"The customer support has been inconsistent with Trellix lately because there is a whole loopback hierarchy that you have to reach the customer service first, and then the engineer will respond, and then the customer service will feed you back again."
"Trellix Email Security can be improved in several areas."
"To improve Trellix Email Security, I think the dashboard details could be enhanced."
"Threat intelligence is adequate because they are using Microsoft GTI threat intelligence, but we need to increase protection against phishing and spam mails."
"For potential areas of improvement, Trellix can enable proper single sign-on as opposed to a local username and password."
"When we talk about security, Trellix Email Security console is very complex."
 

Pricing and Cost Advice

"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's pricing lacks transparency."
"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."
"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."
"Cloudflare Zero Trust Platform's pricing is good."
"The pricing is somewhere in the middle. I would rate the pricing a seven out of ten."
"The prices are slightly expensive."
"The solution is not that expensive."
"The tool's pricing is excellent."
"The price of Microsoft Exchange Online Protection is reasonable."
"Microsoft Exchange Online Protection's pricing is a little bit more because its price has recently increased."
"The price could be lower."
"It is a low-price solution."
"The product is expensive."
"The pricing of the solution is reasonable."
"The solution is priced high and could be less expensive compared to other solutions."
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Top Industries

By visitors reading reviews
Construction Company
19%
Comms Service Provider
11%
Outsourcing Company
9%
Financial Services Firm
8%
Financial Services Firm
11%
Manufacturing Company
9%
Computer Software Company
8%
Government
8%
Construction Company
14%
Computer Software Company
11%
Financial Services Firm
11%
Outsourcing Company
11%
 

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 Business24
Midsize Enterprise7
Large Enterprise11
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise4
Large Enterprise7
 

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 needs improvement with Microsoft Exchange Online Protection?
From an end-user point of view, I am quite happy with Microsoft Exchange Online Protection (EOP) because my favorite ...
What is your primary use case for Microsoft Exchange Online Protection?
Microsoft Exchange Online Protection (EOP) serves as the main use case for my company because, as a research company,...
What advice do you have for others considering Microsoft Exchange Online Protection?
My experience with Microsoft Exchange Online Protection (EOP) is from an end-user perspective, and I do not have admi...
What is your experience regarding pricing and costs for Trellix Email Security?
My experience with pricing, setup cost, and licensing for Trellix Email Security is that everything good has a price....
What needs improvement with Trellix Email Security?
Trellix Email Security can be improved in several areas. Although it has almost all the features that an email securi...
What is your primary use case for Trellix Email Security?
My main use case for Trellix Email Security is for external communication, where we use the IOCs that we already have...
 

Also Known As

Cloudflare Area 1 Email Security, Cloudflare Bot Management, Cloudflare Gateway, Cloudflare Zero Trust Platform, Cloudflare DDoS, Cloudflare SASE & SSE Platform
Microsoft EOP, MS Exchange Online Protection
No data available
 

Overview

 

Sample Customers

23andMe
Information Not Available
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Find out what your peers are saying about Microsoft Exchange Online Protection (EOP) vs. Trellix Email Security and other solutions. Updated: August 2026.
908,877 professionals have used our research since 2012.