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

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 12, 2025

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
6.7
Number of Reviews
41
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

HP
Cloud Consultant at Ensono
Service provider benefits from effective email security management and seeks enhanced customer support
Reporting could be one of the areas for improvement, as they could put more reporting into Microsoft Exchange Online Protection (EOP) natively rather than requiring additional licensing or connecting to other parts of the Microsoft suite, but it depends on the license you have. There aren't significant concerns with Microsoft Exchange Online Protection (EOP), as it depends on what customers expect; if they expect more features, then it depends on what Microsoft 365 license they have. The important thing is to ensure they are using all the security features they get with their licensing. The basic one is Microsoft Exchange Online Protection (EOP). While it's nice to have more functionality, that's available through other licensing programs with Microsoft. While we'd prefer more features, as a basic tool, it's fine, but more advanced features come with the add-ons from other parts of the Microsoft 365 licensing. One feature that could improve Microsoft Exchange Online Protection (EOP) is automated malware detection, where it actually analyzes the file offline in a sandbox to determine if it's safe, potentially reducing false positives.
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

"The initial setup was easy. The configuration process is very straightforward."
"Microsoft Exchange Online Protection has features like DLP (data loss protection), Safe Attachment, and Safe Links."
"It's definitely scalable."
"The email policy configuration options in Microsoft EOP are satisfactory."
"It offers great security against malware and other threats."
"Microsoft EOP's most valuable feature is a shared mailbox."
"The product protects against malware."
"The most valuable features of Microsoft Exchange Online Protection are the EOP, ATP, safe links, fishing, and antispam."
"Compared to other email solutions such as Cisco, price-wise, we get this solution within 50 to 60% of the average."
 

Cons

"Some of the searchability when looking for specifics in Exchange logs is tedious."
"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 needs to improve its backup."
"Performance and speed should continue to be improved."
"I would like to get reports about vulnerable connections from our clients with information about domains, public IPs, etc. That would be highly useful."
"The solution can be complex at times. It would be nice to have the on-server version. It needs to improve the stability as well."
"The management interface of Microsoft Exchange Online Protection (EOP) could be intuitive."
"The reporting needs a little bit of improvement."
"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

"The tool's pricing is excellent."
"The solution is priced high and could be less expensive compared to other solutions."
"The solution should reduce the cost."
"Microsoft Exchange Online Protection's pricing is a little bit more because its price has recently increased."
"The product is expensive."
"The product's pricing is competitive for the US market."
"The pricing of the solution is reasonable."
"Apart from the license fee for the solution, there are no additional costs."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
10%
Manufacturing Company
8%
Government
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise7
Large Enterprise10
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?
The user interface of Microsoft Exchange Online Protection (EOP) has room for improvement, as at times it doesn't make sense where to go to access certain features.
What is your primary use case for Microsoft Exchange Online Protection?
My use case for Microsoft Exchange Online Protection (EOP) is basically to protect ourselves from phishing emails and to improve our email security.
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, Check Point Software Technologies, Proofpoint and others in Email Security. Updated: December 2025.
879,425 professionals have used our research since 2012.