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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
9th
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
42nd
Average Rating
1.0
Reviews Sentiment
4.3
Number of Reviews
1
Ranking in other categories
Email Archiving (14th)
 

Mindshare comparison

As of September 2026, in the Email Security category, the mindshare of Microsoft Exchange Online Protection (EOP) is 2.9%, down from 5.3% compared to the previous year. The mindshare of N-able Mail Assure is 0.8%, 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)2.9%
N-able Mail Assure0.8%
Other96.3%
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

"The most valuable feature is the ease of administration. Other solutions require complex administration, but Microsoft Exchange Online Protection is easier."
"The product protects against malware."
"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."
"Microsoft Exchange Online Protection has features like DLP (data loss protection), Safe Attachment, and Safe Links."
"We use the solution to receive emails. We do not use the calendar function as our clients are slow adaptors to the latest features."
"Microsoft EOP's most valuable feature is a shared mailbox."
"With Microsoft Exchange Online Protection, if malware is attached to a mailer, it's very easy to go into the incident alert and find out what's happening with that identity and the mail."
"It's definitely scalable."
"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

"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."
"When the product is being updated, it changes some of the setups. The support team is also not good."
"It doesn't protect against everything. We do need protection for, for example, endpoints."
"We have experienced issues while migrating from on-prem to the cloud. The tool needs to improve its stability."
"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."
"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

"The solution is expensive but is backed by Microsoft's reputation."
"The tool's pricing is excellent."
"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."
"It's a high price."
"The product's pricing is competitive for the US market."
"The solution is priced high and could be less expensive compared to other solutions."
"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."
"The price could be lower."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Manufacturing Company
9%
Comms Service Provider
9%
Computer Software Company
7%
Construction Company
15%
Computer Software Company
11%
Comms Service Provider
9%
Government
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: August 2026.
914,322 professionals have used our research since 2012.