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AppRiver Email Security vs EasyDMARC comparison

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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 Defender for Offi...
Sponsored
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
52
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (1st), Microsoft Security Suite (11th), Secure Email Gateway (SEG) (1st)
AppRiver Email Security
Ranking in Email Security
24th
Average Rating
9.0
Reviews Sentiment
6.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
EasyDMARC
Ranking in Email Security
26th
Average Rating
10.0
Reviews Sentiment
8.4
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 12.6%, down from 17.6% compared to the previous year. The mindshare of AppRiver Email Security is 0.9%, down from 1.1% compared to the previous year. The mindshare of EasyDMARC is 0.4%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security
 

Featured Reviews

Tolu Omolaja - PeerSpot reviewer
Great URL scanning and attachment scanning, but I would like more proactive threat analysis
The two main features that prove most beneficial for us are URL scanning and attachment scanning. URL scanning involves an automatic scan of links and emails. When a user clicks on a link within an email, the system promptly checks the link's safety. If the link is deemed safe, access is granted automatically. However, if it is flagged as unsafe, we receive feedback and notification to caution us about the potentially harmful link. At this point, we are presented with the option to proceed or return. I have personally witnessed the system identify a few unsafe links, making this the primary advantage of using the solution. The second crucial aspect is the scanning of attachments. When an email containing an attachment arrives, we receive a notification of the new email, along with information that the attachment is being scanned for threats. This additional layer of security provides peace of mind for our organization. While Microsoft Defender for Office 365 offers numerous features, these two stand out as particularly impressive and valuable to us.
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.
Stephen Jordan - PeerSpot reviewer
Helps to manage and implement DMARC for clients
The product helps me manage and implement DMARC for my clients. It makes the process easy, which is otherwise complicated.  The tool's most valuable features are hosted SPF and DMARC records.  EasyDMARC should improve white labeling.  I have been using the product for a year.  I rate the…

Quotes from Members

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

Pros

"Defender for Office 365 has helped eliminate having to look at multiple dashboards and that is the aspect I like most about it. It is simpler, effective, and convenient. The users like the process efficiency."
"I would say that 90% of the spam and phishing attack emails get blocked right off the bat."
"It has significantly decreased my time to detection and response."
"The most valuable feature of Microsoft Defender for Office 365 is the ease of use."
"I like its investigation capabilities, as that is what is most important to me. It is fairly simple with a user-friendly interface."
"The product's scalability is good."
"Overall, I would rate Microsoft Defender for Office 365 at a ten."
"The basic features are okay and I'm satisfied with the Defender."
"They are very easy to use."
"It's easy to use and user-friendly. Users can also easily release spam emails."
"The tool's most valuable features are hosted SPF and DMARC records."
 

Cons

"One area for improvement is support, in terms of being able to reach them and, especially, technical support for configuration."
"The UI needs to be more user-friendly."
"Microsoft sometimes has downtime, and we'll get several incidents coming in back to back. We have a huge backlog of notifications, many of which may be false positives. However, there might be serious alerts, so we can't risk dismissing all of them at once."
"It would be better if it were more scalable. It depends on the architecture, but we would like to make it more scalable for both data centers."
"One area for improvement is integration. For example, when it comes to external SaaS platforms, we were not able to get a lot of information on integrations with such apps for security and authentication."
"Configuration requires going to a lot of places rather than just accessing one tab."
"We are always looking for others tools to increase automation on tasks. There can be better integration with other solutions, such as PowerPoint and email."
"We need a separate license and we don't know how to get the license that is required."
"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."
"EasyDMARC should improve white labeling."
 

Pricing and Cost Advice

"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"Microsoft Defender is expensive. I typically recommend it only if clients have the budget. Otherwise, I would suggest an alternative."
"I know that the product is incredibly expensive."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
"The pricing is normal. Considering its popularity, it's not overpriced."
"The solution could be better by simplifying the business model of their licensing. It was hard to figure out how to get the licensing done for the environment, initially."
"I was working in the government and it was too expensive for us to use our Microsoft products."
"While Microsoft Defender for Office 365 necessitates pricier E3 or E5 subscriptions, the extensive functionality offered by these licenses across various Microsoft products justifies the investment."
"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."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
13%
Retailer
8%
Manufacturing Company
8%
Construction Company
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

What do you like most about Microsoft Defender for Office 365?
Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of variou...
What is your experience regarding pricing and costs for Microsoft Defender for Office 365?
Microsoft is quite affordable with a lot of features available for any size organization.
What needs improvement with Microsoft Defender for Office 365?
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS recor...
What do you like most about AppRiver Email Security?
It's easy to use and user-friendly. Users can also easily release spam emails.
What is your experience regarding pricing and costs for AppRiver Email Security?
I can rate it five out of ten because there are different platforms that also offer the same services for lower price...
What needs improvement with AppRiver Email Security?
It needs to make sure that the application is up to date with new attacks. They should also send us the demo or intro...
What do you like most about EasyDMARC?
The tool's most valuable features are hosted SPF and DMARC records.
What needs improvement with EasyDMARC?
EasyDMARC should improve white labeling.
What is your primary use case for EasyDMARC?
The product helps me manage and implement DMARC for my clients. It makes the process easy, which is otherwise complic...
 

Also Known As

MS Defender for Office 365
AppRiver Advanced Email Security
No data available
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
IHMC
Information Not Available
Find out what your peers are saying about Microsoft, Proofpoint, Cisco and others in Email Security. Updated: May 2025.
853,831 professionals have used our research since 2012.