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Microsoft Exchange Online Protection (EOP) vs Sublime Security comparison

 

Comparison Buyer's Guide

Executive Summary

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)
Sublime Security
Ranking in Email Security
23rd
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
3
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Email Security category, the mindshare of Microsoft Exchange Online Protection (EOP) is 4.3%, down from 7.3% compared to the previous year. The mindshare of Sublime Security is 1.6%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Microsoft Exchange Online Protection (EOP)4.3%
Sublime Security1.6%
Other94.1%
Email Security
 

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.
reviewer2764257 - PeerSpot reviewer
Manager Security Operations Center at a educational organization with 10,001+ employees
Improves decision-making with clear verdict explanations and works well across multiple environments
I know that a lot of time has been invested in improving the efficacy of the platform, and it shows; it performs very well. Moving forward, I think our focus should be on how to achieve better integration with other systems. While they do provide API-level access and web hooks, I believe more out-of-the-box integrations with SOAR platforms and SIEM tools would enhance Sublime's value. This would allow it to be integrated more closely with the workflows of various teams and could potentially increase its market appeal. From my perspective, the tool itself functions exceptionally well, which gives me confidence in the system. I want to see this functionality extend to other tools that I use, enabling faster automation and improved workflows for the team, particularly from a security operations standpoint. I have no critiques regarding the tool itself. They've done an outstanding job and are maintaining high quality throughout their development process. They have a great product, and it's essential that they continue to uphold that standard, even though it requires significant effort.

Quotes from Members

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

Pros

"I rate Microsoft Exchange Online Protection (EOP) nine out of ten."
"The scalability is pretty good; it does what it is supposed to do."
"The initial setup is just a standard process."
"It is easy to configure, easy to use, easy to add exclusions, easy to track, and easy to add anything else if you want."
"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 security features provided by Microsoft are robust."
"The solution's stability is very, very good. I didn't face any problems in the last year."
"The initial setup of Microsoft Exchange Online Protection was easy."
"Overall, the auditability and the ability to evaluate the information in Sublime through various mechanisms made me very comfortable with setting these capabilities to auto-remediation."
"I like its ability to detect and block."
"So far, I do not see any problem with Sublime Security's support or their customer service."
 

Cons

"Some of the searchability when looking for specifics in Exchange logs is tedious."
"The licensing can be on the expensive side, especially in the cloud space."
"We would like the solution to have more in-built intelligence in the way that it reviews potential security risks, rather than our team constantly having to update the policies."
"The solution lacks to elaborate on its spam policies."
"Performance and speed should continue to be improved."
"The tool's classification for bulk email is cumbersome."
"The solution needs to improve its backup."
"It doesn't protect against everything. We do need protection for, for example, endpoints."
"With Sublime Security, so far, I have seen a lot of false positives, and it is something that can bring a lot of administrative overhead."
"While they do provide API-level access and web hooks, I believe more out-of-the-box integrations with SOAR platforms and SIEM tools would enhance Sublime's value."
"The ability for users to look at their own quarantine box needs improvement. So at the moment, it doesn't give you the ability to see every email that has been quarantined. No end-user has the ability to see what's being quarantined. It's only people who have access to the back-end platform that can actually see what has been quarantined. The end user doesn't know if they have an email that has been quarantined, only if they're expecting something that didn't come through."
 

Pricing and Cost Advice

"The product is bundled with Microsoft 365."
"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."
"The solution should reduce the cost."
"The product is expensive."
"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."
"It is a low-price solution."
"The price could be lower."
"I would rate the pricing of Sublime Security as a seven out of ten. It is reasonably well-priced."
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Financial Services Firm
10%
Manufacturing Company
9%
Government
7%
Computer Software Company
11%
Financial Services Firm
10%
Marketing Services Firm
8%
Government
7%
 

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?
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 Sublime Security?
It's very reasonable. It's competitive with its peers, especially for the number of mailboxes we have.
What needs improvement with Sublime Security?
I know that a lot of time has been invested in improving the efficacy of the platform, and it shows; it performs very well. Moving forward, I think our focus should be on how to achieve better inte...
What is your primary use case for Sublime Security?
The basic functionality provided by Microsoft Defender and its email protections was insufficient for our needs. While it effectively handled common spam and phishing attempts, we required a soluti...
 

Also Known As

Microsoft EOP, MS Exchange Online Protection
No data available
 

Overview

 

Sample Customers

Information Not Available
Snowflake, Spotify, Anduril, Elastic, Compass, Encompass Health, Zscaler, Ovo Energy, Personio, Beneteler 
Find out what your peers are saying about Microsoft Exchange Online Protection (EOP) vs. Sublime Security and other solutions. Updated: February 2026.
881,733 professionals have used our research since 2012.