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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
36th
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
6.6
Number of Reviews
42
Ranking in other categories
Anti-Malware Tools (12th)
 

Mindshare comparison

As of January 2026, in the Email Security category, the mindshare of AppRiver Email Security is 0.9%, down from 1.1% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 4.4%, down from 7.4% 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)4.4%
AppRiver Email Security0.9%
Other94.7%
Email Security
 

Featured Reviews

John Zupancic - PeerSpot reviewer
Vice President / Branch Manager / Senior Technician at Aperion Information Technologies, Inc.
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.
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

"They are very easy to use."
"It's easy to use and user-friendly. Users can also easily release spam emails."
"The email policy configuration options in Microsoft EOP are satisfactory."
"It provides security to both on-premises and Azure infrastructures."
"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 is scalable."
"It is an easy solution."
"Microsoft Exchange Online Protection (EOP) is the best email solution with more features and robust security, making it ideal for corporate use."
"Microsoft EOP's most valuable feature is a shared mailbox."
"I like the product's ZAP feature."
 

Cons

"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."
"Email security checks contain a small number of false positives."
"The price of Microsoft Exchange Online Protection could be reduced to make it more competitive."
"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."
"When the product is being updated, it changes some of the setups. The support team is also not good."
"The licensing can be on the expensive side, especially in the cloud space."
"Having orchestration features added to Microsoft Exchange Online Protection, particularly automation and remediation, would be quite useful."
"They should specify the difference between Defender for Office 365 and Exchange Online Protection."
"Microsoft has some training portals, but more could be developed."
"Some of the searchability when looking for specifics in Exchange logs is tedious."
 

Pricing and Cost Advice

"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."
"They're fairly inexpensive, but they're right in the ballpark of most of the other online products like that."
"The solution is expensive but is backed by Microsoft's reputation."
"Regarding the price, it's comparable to other service providers. We've also looked at Check Point's offerings, and the pricing doesn't seem to be an issue."
"The price of Microsoft Exchange Online Protection is reasonable."
"The product is bundled with Microsoft 365."
"It is a low-price solution."
"It's a high price."
"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."
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Top Industries

By visitors reading reviews
Manufacturing Company
11%
Comms Service Provider
9%
Computer Software Company
9%
Retailer
8%
Computer Software Company
11%
Financial Services Firm
10%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise7
Large Enterprise11
 

Questions from the Community

Ask a question
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: December 2025.
881,082 professionals have used our research since 2012.