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

 

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

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 (12th)
Trellix Email Security
Ranking in Email Security
27th
Average Rating
9.0
Reviews Sentiment
7.7
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Featured Reviews

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.
KB
Senior Technical Support Engineer at Digitaltrack
Ease of deployment and cost-effectiveness boost operational efficiency
I have recommendations for increasing dashboard customization. Currently, we are using custom dashboards, but they are not effectively customizable. If they provide better customization options, it would be easier to understand everything in a single dashboard instead of navigating through dropdown menus to see reports. Additionally, log retention is currently 30 days, but some customers request to extend it to 60 days. Having 60 days of log retention would be helpful for maintaining logs.

Quotes from Members

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

Pros

"What I like most about Microsoft Exchange Online Protection is its integration with Windows, so we have one central view for all alerts and incidents."
"The scalability is pretty good; it does what it is supposed to do."
"I rate Microsoft Exchange Online Protection (EOP) nine out of ten."
"We use the solution to receive emails. We do not use the calendar function as our clients are slow adaptors to the latest features."
"It is easy to configure, easy to use, easy to add exclusions, easy to track, and easy to add anything else if you want."
"It's all running in the backend, so it doesn't affect the app functionality."
"You can use the product to create special accounts."
"The most valuable feature of Microsoft Exchange Online Protection is the accidental release of information protection capabilities. Additionally, the solution is easy to use."
"Compared to other email solutions such as Cisco, price-wise, we get this solution within 50 to 60% of the average."
 

Cons

"When you're using a Microsoft product solution, you can scale it, but if you're not, there are limitations."
"The product's end-of-life cycle could be extended."
"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."
"I think the implementation could be more streamlined."
"The security compliance features need to be improved. Sometimes, a client's mailbox becomes full because of retained information and not because of mail. I would like to see improvement in block rules as well."
"The solution lacks to elaborate on its spam policies."
"Performance and speed should continue to be improved."
"It wasn't easy or intuitive enough for me to start using it. So, the reason was that the solution changed."
"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

"Microsoft Exchange Online Protection's pricing is a little bit more because its price has recently increased."
"The solution is priced high and could be less expensive compared to other solutions."
"Online Protection is fairly expensive."
"The solution's pricing is subscription-based rather than a yearly licensing cost. Pricing is based on the size of the environment and company and can be expensive."
"Regarding the price, it's comparable to other service providers. We've also looked at Check Point's offerings, and the pricing doesn't seem to be an issue."
"The price could be lower."
"The tool's pricing is excellent."
"The solution falls on the higher or more expensive side of the spectrum."
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Top Industries

By visitors reading reviews
Computer Software Company
11%
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 Business24
Midsize Enterprise7
Large Enterprise11
No data available
 

Questions from the Community

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 feature is the ease with which I can identify if an email is a phishing email or...
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, we require a very high level of security. We use multiple authentication method...
What is your experience regarding pricing and costs for Trellix Email Security?
I am satisfied with the secure licensing cost because compared to other solutions, Trellix Email Security is cheaper and provides most features. I only know about the pricing from one year ago.
What needs improvement with Trellix Email Security?
I have recommendations for increasing dashboard customization. Currently, we are using custom dashboards, but they are not effectively customizable. If they provide better customization options, it...
What is your primary use case for Trellix Email Security?
We block DMARC for incoming mails and have threat detection enabled to block or identify any spam mail received in end-user mailboxes. We prevent spam mails and unknowns such as DKIM and DMARC unav...
 

Also Known As

Microsoft EOP, MS Exchange Online Protection
No data available
 

Overview

Find out what your peers are saying about Microsoft, Proofpoint, Check Point Software Technologies and others in Email Security. Updated: January 2026.
881,733 professionals have used our research since 2012.