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

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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
9th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Anti-Malware Tools (14th)
 

Mindshare comparison

As of September 2026, in the Email Security category, the mindshare of AppRiver Email Security is 0.7%, down from 0.8% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 2.9%, down from 5.3% 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%
AppRiver Email Security0.7%
Other96.4%
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

"It's easy to use and user-friendly. Users can also easily release spam emails."
"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."
"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."
"In general, my company is happy with Microsoft support...My company hasn't faced any stability issues with the solution."
"It provides security to both on-premises and Azure infrastructures."
"The most valuable feature is the ease of administration. Other solutions require complex administration, but Microsoft Exchange Online Protection is easier."
"We can migrate seamlessly without any disruptions to our operations."
"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 has a really nice web-based administration console."
 

Cons

"Email security checks contain a small number of false positives."
"Technical support is no longer as good as it once was."
"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."
"The solution needs to improve its backup."
"Some of the searchability when looking for specifics in Exchange logs is tedious."
"The security compliance features need to be improved. Sometimes, a client's mailbox becomes full because of retained information and not because of mail. I would like to see improvement in block rules as well."
"Online Protection has an issue in that it doesn't provide an option to stop impersonation."
"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."
"They should specify the difference between Defender for Office 365 and Exchange Online Protection."
"Performance and speed should continue to be improved."
"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's pricing is a little bit more because its price has recently increased."
"The product is expensive."
"The tool's pricing is excellent."
"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 product's pricing is competitive for the US market."
"The price of Microsoft Exchange Online Protection is reasonable."
"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."
"Apart from the license fee for the solution, there are no additional costs."
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Top Industries

By visitors reading reviews
Comms Service Provider
12%
Manufacturing Company
11%
Outsourcing Company
11%
Retailer
9%
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

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 2026.
913,630 professionals have used our research since 2012.