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AppRiver Email Security vs Proofpoint Email Protection 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

Microsoft Defender for Offi...
Sponsored
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
49
Ranking in other categories
Advanced Threat Protection (ATP) (1st), Microsoft Security Suite (11th)
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
Proofpoint Email Protection
Ranking in Email Security
3rd
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
Security Awareness Training (2nd), Digital Risk Protection (3rd), Office 365 Protection (1st), Secure Email Gateway (SEG) (2nd)
 

Mindshare comparison

As of May 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 12.9%, down from 18.3% 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 Proofpoint Email Protection is 8.1%, down from 11.7% 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.
AhmedRamadan - PeerSpot reviewer
Optimize email security with effective sandboxing and auto Pull for quarantine
Proofpoint is used as an email security gateway for big enterprises, primarily for their on-premises servers. Many customers also use it alongside Office 365 Proofpoint offers a complete solution for email security with features like DLP, email archiving, and encryption. The most valuable…

Quotes from Members

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

Pros

"It gives us visibility into threats and, for endpoints, it helps us to prioritize threats. We used to have a lack of visibility, but now our time to detect and respond has decreased."
"Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of various email campaigns, pinpointing where they emanate from, and identifying the individuals within our organization who are affected."
"It also gives the vulnerability status according to the versions you have selected. Let's say you have Google Chrome. It mentions the versions it has, and it updates. Within two hours of an update, it is reflected in the dashboard. That's really nice to have."
"The most valuable feature of Microsoft Defender for Office 365 is the ease of use."
"The most valuable feature is the integration. It's a single console, so we don't have to switch around between multiple products. Another valuable feature is the ease of operations and maintenance."
"The most valuable feature is protection against malicious links, fishing, and impersonation. You can train people to be aware of these threats, but they're not always careful. When they're using their phones between meetings, they click on a link, and it's game over."
"The most valuable feature of Microsoft Defender for Office 365 is data backups that we can provide through ticket requests."
"Microsoft Defender for Office 365 helps people to work remotely. It is a secure solution. We don't need to use our company's computers or get VPN connections to the networks. I can control how they share screens and what they send to the devices. It keeps our organizations confidential and sensitive information safe."
"They are very easy to use."
"It's easy to use and user-friendly. Users can also easily release spam emails."
"The most valuable feature of Proofpoint Email Protection is the blocking capabilities, it blocks a lot of potential threats."
"It's very good at identifying threats."
"The tool has improved our workflow by ensuring people receive only the emails they need for work rather than being inundated with hundreds or thousands of unnecessary emails daily."
"It is a very scalable solution."
"The Phish Alarm button allows users to submit questionable emails for review and complete analysis."
"Proofpoint Email Protection is the best solution from the perspective of email security."
"The most valuable features are the business email compromise protection and targeted attack prevention."
"The solution offers very good flexibility. You can blacklist or whitelist with ease."
 

Cons

"Microsoft Defender for Office 365 should be more proactive."
"The GUI is sometimes slow to fetch the device report and could be improved."
"The changes to customer service, specifically the new model for support agreements, are not favorable."
"The UI needs to be more user-friendly."
"The pre-sales cost calculations could be more transparent."
"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."
"Microsoft security solutions work as expected. They are constantly updating the solutions to make them better. At the same time, the changes can impact a customer's environment, and we need to adjust settings. Sometimes we aren't aware of the changes, and nothing is pushed from the backend automatically."
"Configuration at the mid-level could be improved for the support team."
"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."
"I want Security Awareness Training in there as a package deal. A lot of companies are starting to value email security a little bit more and take it a little bit more seriously, and the great product that we link together with a lot of these sales is a training product called Security Awareness Training. It is an upsell that we do with Proofpoint, and it is definitely something that I recommend everybody with email security to look into. It would be great if Security Awareness Training is included with the email security."
"The false positives are an issue."
"Integration for reporting needs to be improved, it's too complex."
"The high cost of the product is an area of concern where improvements are required."
"Proofpoint should have better integration with complex environments that need more than one instance of Proofpoint, as there are issues with nested instances."
"Unfortunately, the whole product is going downhill right now, ever since they were sold to Thoma Bravo. We're constantly having problems with stability and the product in general."
"The price could be improved."
"It's scalable, but the devil's in the details — you have to know your email volumes."
 

Pricing and Cost Advice

"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."
"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 was working in the government and it was too expensive for us to use our Microsoft products."
"Microsoft Defender is expensive. I typically recommend it only if clients have the budget. Otherwise, I would suggest an alternative."
"The license is expensive because the cost is based on the number of users."
"It's a user-base subscription."
"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."
"Microsoft Defender for Office 365 comes with Microsoft Windows. It is free with the operating system."
"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."
"They are competitively priced, but I have been forced to get quotes for other solutions now because they haven't been responding to requests to do the work that we would like them to do."
"The licensing is basically $8/user."
"I rate the price of Proofpoint Email Protection a four out of five."
"The solution charges per user per month to use it. There are not any additional fees in addition to the standard living fees."
"The end customer is buying our solution, which can be for monthly or annual usage depending on our payment and business model."
"The licensing cost of Proofpoint Email Protection is a lot higher than other solutions, such as Barracuda."
"Pricing has recently been increased and the cost is a downside"
"Proofpoint Email Protection is a reasonably priced product, which means that it is neither too low nor too high in terms of price."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
8%
Manufacturing Company
8%
Government
6%
Computer Software Company
15%
Construction Company
7%
Manufacturing Company
7%
Financial Services Firm
7%
Educational Organization
27%
Computer Software Company
12%
Financial Services Firm
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
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?
Money-wise, it is a part of the Office 365 ( /products/office-365-reviews ) suite, making it slightly more expensive ...
What needs improvement with Microsoft Defender for Office 365?
The main area for improvement is simplifying the implementation and rollout process. There are many conditions to be ...
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 is your experience regarding pricing and costs for Proofpoint Email Protection?
In terms of pricing, it is okay compared to others. I would say it is normal. Additional costs do come in, but it enh...
What needs improvement with Proofpoint Email Protection?
In terms of improvement, the price could be better. Additionally, more security could be implemented.
 

Also Known As

MS Defender for Office 365
AppRiver Advanced Email Security
Proofpoint Enterprise Protection, Cofense PhishMe, Proofpoint Digital Protection
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
IHMC
Blocket, University of Waterloo, Lincoln Memorial University, WellSpan Health, U-Haul, Carestream Health, Westinghouse
Find out what your peers are saying about AppRiver Email Security vs. Proofpoint Email Protection and other solutions. Updated: April 2025.
849,686 professionals have used our research since 2012.