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Microsoft Exchange Online Protection (EOP) vs N-able Mail Assure 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

Microsoft Exchange Online P...
Ranking in Email Security
10th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Anti-Malware Tools (14th)
N-able Mail Assure
Ranking in Email Security
41st
Average Rating
1.0
Reviews Sentiment
4.3
Number of Reviews
1
Ranking in other categories
Email Archiving (13th)
 

Mindshare comparison

As of November 2026, in the Email Security category, the mindshare of Microsoft Exchange Online Protection (EOP) is 3.0%, down from 4.9% compared to the previous year. The mindshare of N-able Mail Assure is 0.9%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Microsoft Exchange Online Protection (EOP)3.0%
N-able Mail Assure0.9%
Other96.1%
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.
This is a dud product with inferior spam filtering
This is a dud product with inferior spam filtering versus alternatives like SpamHero, and the continuity feature is essentially marketing fluff. Failed deliveries, for example, they don't count it as an issue so those messages won't be queued for another delivery attempt. As I understand it from talking to their support, if the server pings or sends any response at all, then Mail Assure will not keep a copy. It will also weirdly mark messages during that outage as rejected, so it's not like Mail Assure doesn't know that the message never reached the user(s).

Quotes from Members

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

Pros

"It's all running in the backend, so it doesn't affect the app functionality."
"The security features provided by Microsoft are robust."
"We use the solution to receive emails. We do not use the calendar function as our clients are slow adaptors to the latest features."
"We use the solution in all our environments. We use it for remedy tickets and give them updates. It was our main communication point."
"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."
"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."
"It has a really nice web-based administration console."
"It is useful for local users and our company because we use Microsoft 365."
"The only benefit from Mail Assure is its white label feature and its per-user licensing plus the ability to package archiving and spam protection into a single interface."
 

Cons

"Some of the searchability when looking for specifics in Exchange logs is tedious."
"Our Exchange system is very locked down and secure, yet we still got hacked."
"The reporting needs a little bit of improvement."
"We have experienced issues while migrating from on-prem to the cloud. The tool needs to improve its stability."
"I am somewhat happy with technical support from Microsoft. Sometimes it takes a while to get through to the right person or team."
"I think the implementation could be more streamlined."
"Microsoft Exchange Online Protection is quite a difficult product."
"The licensing can be on the expensive side, especially in the cloud space."
"This is a dud product with inferior spam filtering versus alternatives like SpamHero, and the continuity feature is essentially marketing fluff."
 

Pricing and Cost Advice

"Microsoft Exchange Online Protection's pricing is a little bit more because its price has recently increased."
"The product is 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."
"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."
"Online Protection is fairly expensive."
"The solution should reduce the cost."
"The price could be lower."
"On a scale of one to ten, where one is cheap, and ten is very expensive, I rate the pricing a six. For licensing, we can make monthly or yearly payments. Right now, we pay 5 USD per month to secure a person's license."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Comms Service Provider
9%
Manufacturing Company
9%
Government
7%
Construction Company
15%
Comms Service Provider
11%
Government
7%
Computer Software Company
7%
 

Company Size

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

Questions from the Community

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...
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Also Known As

Microsoft EOP, MS Exchange Online Protection
SolarWinds MSP Mail, SolarWinds Mail Assure, SolarWinds MSP Mail Assure
 

Overview

 

Sample Customers

Information Not Available
eNet Systems, WinAdmins, Newport Systems
Find out what your peers are saying about Proofpoint, Microsoft, Check Point Software Technologies and others in Email Security. Updated: October 2026.
920,769 professionals have used our research since 2012.