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

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 3, 2024

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

AppRiver Email Security
Ranking in Email Security
38th
Average Rating
9.0
Reviews Sentiment
6.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
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 (8th)
 

Mindshare comparison

As of October 2025, in the Email Security category, the mindshare of AppRiver Email Security is 0.9%, down from 1.2% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 5.4%, down from 7.9% 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)5.4%
AppRiver Email Security0.9%
Other93.7%
Email Security
 

Featured Reviews

John Zupancic - PeerSpot reviewer
Pricing that is competitive, excellent technical support, and email security
They do a better job of distinguishing between what's real and what's not than most of the other solutions we've tried. They are very easy to use. We don't have as many problems with email security. They have some areas that could be improved. For example, we also use Zix email Encryption for email encryption, which was clunky and could be improved, but the email security itself has been excellent.
Amber Worth - PeerSpot reviewer
Retrieves data from quarantines and easy to read logs with robust security features
Some of the searchability when looking for specifics in Exchange logs is tedious. Although eventually the information is located, it can be difficult if detailed information is lacking. Improving the search process by allowing searches with different types of parameters and facilitating searches within emails would be advantageous. Simplifying interfaces would also be appreciated.

Quotes from Members

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

Pros

"They are very easy to use."
"It's easy to use and user-friendly. Users can also easily release spam emails."
"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 initial setup was easy. The configuration process is very straightforward."
"It is scalable."
"It offers great security against malware and other threats."
"It has a really nice web-based administration console."
"The product protects against malware."
"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."
"The security features provided by Microsoft are robust."
 

Cons

"Email security checks contain a small number of false positives."
"It needs to make sure that the application is up to date with new attacks. They should also send us the demo or introductions for their new incoming features."
"Some of the searchability when looking for specifics in Exchange logs is tedious."
"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."
"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."
"The licensing can be on the expensive side, especially in the cloud space."
"They should specify the difference between Defender for Office 365 and Exchange Online Protection."
"Not all settings can be configured automatically and most still require manual configuration. However, there is an automation tool available that can be used to input all the configurations either as a script or a tool it would be helpful."
"The solution must improve the user experience."
"Microsoft has some training portals, but more could be developed."
 

Pricing and Cost Advice

"They're fairly inexpensive, but they're right in the ballpark of most of the other online products like that."
"I can rate it five out of ten because there are different platforms that also offer the same services for lower prices. But AppRiver is more flexible."
"Microsoft Exchange Online Protection is a good solution at an affordable price. It is a good investment."
"Microsoft Exchange Online Protection's pricing is a little bit more because its price has recently increased."
"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 falls on the higher or more expensive side of the spectrum."
"The solution is expensive but is backed by Microsoft's reputation."
"The price of Microsoft Exchange Online Protection is reasonable."
"The price could be lower."
"Online Protection is fairly expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Manufacturing Company
10%
Comms Service Provider
9%
Retailer
7%
Computer Software Company
13%
Financial Services Firm
10%
Government
9%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise7
Large Enterprise10
 

Questions from the Community

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Earn 20 points
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.
 

Also Known As

AppRiver Advanced Email Security
Microsoft EOP, MS Exchange Online Protection
 

Overview

 

Sample Customers

IHMC
Information Not Available
Find out what your peers are saying about AppRiver Email Security vs. Microsoft Exchange Online Protection (EOP) and other solutions. Updated: September 2025.
871,829 professionals have used our research since 2012.