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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
8.8
Reviews Sentiment
6.7
Number of Reviews
22
Ranking in other categories
Secure Web Gateways (SWG) (15th), Data Loss Prevention (DLP) (21st), Cloud Access Security Brokers (CASB) (11th), Distributed Denial-of-Service (DDoS) Protection (7th), Software Defined WAN (SD-WAN) Solutions (13th), Access Management (12th), Bot Management (3rd), ZTNA as a Service (8th), ZTNA (3rd), Secure Access Service Edge (SASE) (10th), Remote Browser Isolation (RBI) (3rd)
Microsoft Exchange Online P...
Ranking in Email Security
7th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Anti-Malware Tools (11th)
Trellix Email Security
Ranking in Email Security
24th
Average Rating
8.8
Reviews Sentiment
6.4
Number of Reviews
7
Ranking in other categories
No ranking in other categories
 

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.
Ronald Paz - PeerSpot reviewer
Consulting Systems Engineer at Boomslang Tech
Advanced email defenses have reduced phishing incidents and improved threat visibility
Trellix Email Security detects and blocks threats effectively. The best features Trellix Email Security offers are advanced attachment sandboxing and URL reputation analysis. It helps in detecting zero-days and signature-less threats. It blocks malicious websites even after delivery. The advanced attachment sandbox and URL reputation analysis specifically helps my organization by detecting zero-day or signature-less threats. It blocks malicious URLs even after delivery. It reduces ransomware risk originating from email. This significantly lowers successful phishing attempts. The impact of Trellix Email Security includes a reduction in malicious emails reaching users, a decrease in phishing-related incidents, reduced SOC workload related to email investigation, and better visibility into targeted campaigns.

Quotes from Members

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

Pros

"Cloudflare, in my opinion, was easy to implement."
"The solution has different options that can be used to differentiate DDoS attacks."
"Enables me to work from two locations."
"Cloudflare is by far the most effective solution that I have come across."
"The tool also offers good scalability, and the dashboard, along with real-time analytics, is very good."
"The blocking feature is very good."
"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."
"Microsoft Exchange Online Protection (EOP) is the best email solution with more features and robust security, making it ideal for corporate use."
"Microsoft Exchange Online Protection (EOP) is used essentially for email filtering, acting as an anti-spam and security product for email."
"The most valuable feature of Microsoft Exchange Online Protection is the accidental release of information protection capabilities. Additionally, the solution is easy to use."
"The most valuable features of Microsoft Exchange Online Protection are the EOP, ATP, safe links, fishing, and antispam."
"The solution uses artificial intelligence and machine learning, so you don't need train it to detect something. The detection and response times are short. It's an excellent product."
"I rate Microsoft Exchange Online Protection (EOP) nine out of ten."
"The security features provided by Microsoft are robust."
"With Microsoft Exchange Online Protection, if malware is attached to a mailer, it's very easy to go into the incident alert and find out what's happening with that identity and the mail."
"The impact of Trellix Email Security includes a reduction in malicious emails reaching users, a decrease in phishing-related incidents, reduced SOC workload related to email investigation, and better visibility into targeted campaigns."
"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 impact of Trellix Email Security includes a reduction in malicious emails reaching users, a decrease in phishing-related incidents, reduced SOC workload related to email investigation, and better visibility into targeted campaigns."
"For email spam and malware threat prevention, Trellix Email Security just works and I really appreciate the product."
"Trellix Email Security has improved risk mitigation, increased efficiency, and reduced cost in my organization."
"Overall, my daily experience with Trellix Email Security shows that it is a great solution to protect against malicious or phishing emails with accuracy and ease of use."
"Trellix Email Security is one of the good parts because all our organizations are very aware of email security and they are maybe using some exchange server, which is related to that email security purpose."
"Compared to other email solutions such as Cisco, price-wise, we get this solution within 50 to 60% of the average."
 

Cons

"The free plan has limitations. For example, I can only set up three rules, and the application firewall is unavailable."
"For the topic of improvement, providing some training material is one of my suggestions."
"They don't have a person to provide support for customers using the solution under their free plan."
"Our customers no longer use Cloudflare because its service is subpar."
"The response time for support must be reduced."
"Feedback could be enhanced."
"Lacks a VPN feature to provide a secure connection to the data center."
"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."
"It wasn't easy or intuitive enough for me to start using it. So, the reason was that the solution changed."
"The reporting needs a little bit of improvement."
"The tool is not 100% stable."
"Microsoft has some training portals, but more could be developed."
"When the product is being updated, it changes some of the setups. The support team is also not good."
"The security features could be better."
"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."
"If a company wants to put in line back-to-back anti-spam solutions, they need to work on that part because Microsoft recommends either you use EOP as a front line or you don't use it."
"In my opinion, Trellix Email Security could be improved by making the administrative interface more intuitive, incorporating more dynamic user-based risk scoring, and offering more customizable executive dashboards."
"In my opinion, Trellix Email Security could be improved by making the administrative interface more intuitive, incorporating more dynamic user-based risk scoring, and offering more customizable executive dashboards."
"However, it was somewhat difficult to block URL-based threats and the security settings were complex, making it difficult for us to use features beyond basic security."
"For potential areas of improvement, Trellix can enable proper single sign-on as opposed to a local username and password."
"I think Trellix Email Security needs to improve different sides of email security, especially the filtering process."
"I think Trellix Email Security can be improved by addressing some false positives."
"I think Trellix Email Security can be improved as the console for routing is sometimes slow and I have experienced some false positives, particularly with riskware detection, which has a lot of false positives."
"Threat intelligence is adequate because they are using Microsoft GTI threat intelligence, but we need to increase protection against phishing and spam mails."
 

Pricing and Cost Advice

"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 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."
"Cloudflare Zero Trust Platform's pricing is good."
"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."
"The solution's pricing lacks transparency."
"The prices are slightly expensive."
"It's a high price."
"The tool's pricing is excellent."
"The price of Microsoft Exchange Online Protection is reasonable."
"The pricing for the solution depends on what you are trying to achieve with the use of the product, but I know that it is not a cheaply priced product. Yearly payments have to be made towards the licensing fees of the solution."
"The pricing of the solution is reasonable."
"The product is bundled with Microsoft 365."
"The product is expensive."
"The solution is expensive but is backed by Microsoft's reputation."
Information not available
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
Large Enterprise11
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise7
Large Enterprise11
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise2
Large Enterprise3
 

Questions from the Community

What needs improvement with Cloudflare Access?
Cloudflare Access has strong integration with Microsoft, among other platforms. However, when it comes to Kaspersky, ...
What is your primary use case for Cloudflare Access?
Cloudflare Access provides secure access to internal applications for employees, external members of the organization...
What advice do you have for others considering Cloudflare Access?
Cloudflare Access is one of the best integrations available. While about two hundred vendors offer similar services, ...
What do you like most about Microsoft Exchange Online Protection?
The initial setup was easy. The configuration process is very straightforward.
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 is your experience regarding pricing and costs for Trellix Email Security?
My experience with pricing, setup cost, and licensing is that the cost is relatively the same as other competitors, b...
What needs improvement with Trellix Email Security?
I believe Trellix Email Security could be improved as the reporting could use some improvement. In addition to the re...
What is your primary use case for Trellix Email Security?
My main use case for Trellix Email Security is that I have used it for the past four years as an email gateway for th...
 

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: March 2026.
884,933 professionals have used our research since 2012.