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LevelBlue MailMarshal vs Microsoft Exchange Online Protection (EOP) comparison

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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

LevelBlue MailMarshal
Average Rating
7.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
Secure Email Gateway (SEG) (14th)
Microsoft Exchange Online P...
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Email Security (9th), Anti-Malware Tools (14th)
 

Mindshare comparison

While both are Messaging and Collaboration solutions, they serve different purposes. LevelBlue MailMarshal is designed for Secure Email Gateway (SEG) and holds a mindshare of 1.7%, up 0.8% compared to last year.
Microsoft Exchange Online Protection (EOP), on the other hand, focuses on Anti-Malware Tools, holds 1.4% mindshare, up 1.2% since last year.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Trustwave Secure Email Gateway1.7%
Proofpoint Email Protection18.0%
Mimecast Advanced Email Security14.1%
Other66.2%
Secure Email Gateway (SEG)
Anti-Malware Tools Mindshare Distribution
ProductMindshare (%)
Microsoft Exchange Online Protection (EOP)1.4%
Microsoft Defender for Endpoint6.0%
SentinelOne Singularity Endpoint3.1%
Other89.5%
Anti-Malware Tools
 

Featured Reviews

FA
Cloud & Systems Admin at Service Management Group, Inc.
Offers clear vision on the clear side of what is being blocked and easy to use but a bit old-fashioned GUI
I would rate my experience with the initial setup a four out of ten when one is difficult, and ten is easy. It's difficult initially since it's an on-premise solution. So it's a bit difficult. So the initial assessment took a few days, and then the deployment was a couple of days. It is on-prem. That is also one of the improvements you need to make on the cloud. Most of the people like things to be on the cloud. You don't have the burden of setting up things on-premise.
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.

Quotes from Members

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

Pros

"The product's most valuable features are spam protection and artificial intelligence."
"I like that it doesn't hold emails for any reason; it sends out notifications to the user as well as administrators. So we have a clear vision on the clear side of what is being blocked and in time as well."
"We like the holding facility that is available for potentially suspicious URLs, which allows a real-time review to be performed before the email reaches a user's inbox."
"Overall, I think it's really a great product."
"Microsoft EOP's most valuable feature is a shared mailbox."
"I like the product's ZAP feature."
"The most valuable feature is the ease of administration. Other solutions require complex administration, but Microsoft Exchange Online Protection is easier."
"Microsoft Exchange Online Protection (EOP) is the best email solution with more features and robust security, making it ideal for corporate use."
"The initial setup was easy. The configuration process is very straightforward."
"The product's most valuable feature is third-party integrations."
 

Cons

"There is room for improvement in GUI because it is a bit old-fashioned."
"The technical support services and stability need improvement as well."
"The solution must improve the user experience."
"I am somewhat happy with technical support from Microsoft. Sometimes it takes a while to get through to the right person or team."
"It kind of has a heavy footprint in terms of an implementation footprint."
"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."
"The product could be more stable. Microsoft products could be more stable because sometimes, even though they are updating some things, we cannot find those updates."
"The security features could be better and more secure in the next release."
"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."
"Our Exchange system is very locked down and secure, yet we still got hacked."
 

Pricing and Cost Advice

"The pricing is in the middle. Compared to other products, it should be five out of ten, where one is cheap and ten is expensive."
"It is a cost-effective product."
"Online Protection is fairly expensive."
"The price of Microsoft Exchange Online Protection is reasonable."
"It is a low-price solution."
"The solution falls on the higher or more expensive side of the spectrum."
"The pricing of the solution is reasonable."
"The product is bundled with Microsoft 365."
"Microsoft Exchange Online Protection's pricing is a little bit more because its price has recently increased."
"The price could be lower."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
11%
Manufacturing Company
9%
Comms Service Provider
9%
Computer Software Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise6
Large Enterprise13
 

Questions from the Community

Ask a question
Earn 20 points
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 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 admin management experience. I am not familiar with the Advanced Threat Protection f...
 

Also Known As

Trustwave SEG
Microsoft EOP, MS Exchange Online Protection
 

Overview

Find out what your peers are saying about Proofpoint, Microsoft, Mimecast and others in Secure Email Gateway (SEG). Updated: August 2026.
914,109 professionals have used our research since 2012.