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Proofpoint Email Protection vs ReliaQuest GreyMatter comparison

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Comparison Buyer's Guide

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

Proofpoint Email Protection
Ranking in Digital Risk Protection
3rd
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
111
Ranking in other categories
Email Security (1st), Advanced Threat Protection (ATP) (2nd), Office 365 Protection (1st), Secure Email Gateway (SEG) (1st)
ReliaQuest GreyMatter
Ranking in Digital Risk Protection
11th
Average Rating
9.6
Reviews Sentiment
8.1
Number of Reviews
2
Ranking in other categories
Managed Detection and Response (MDR) (16th), Extended Detection and Response (XDR) (30th)
 

Mindshare comparison

As of September 2026, in the Digital Risk Protection category, the mindshare of Proofpoint Email Protection is 2.9%, up from 1.3% compared to the previous year. The mindshare of ReliaQuest GreyMatter is 2.0%, up from 1.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Digital Risk Protection Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection2.9%
ReliaQuest GreyMatter2.0%
Other95.1%
Digital Risk Protection
 

Featured Reviews

Siva_Prasad - PeerSpot reviewer
Senior Consultant at a tech vendor with 10,001+ employees
Email defenses have reduced phishing incidents and protect sensitive data across our enterprise
As things are evolving and threats develop in unpredictable ways, Proofpoint must adopt AI solutions and agentic solutions more aggressively and provide them to customers as part of service offerings. Inbuilt AI solutions would add more value and make Proofpoint a more premium choice for customers. With the help of AI solutions, agentic AI, and generative AI capabilities, the product would be more efficient than it currently is. Filtering false positives is highly challenging because it is impossible for humans to identify which emails are genuine and which are spam. Proofpoint should focus more on this area with back-end agents or other tools. Proofpoint should decide which emails are genuine and which are spam so it is not a challenge for end users. When receiving an email, end users should not have to determine whether to respond or not. Proofpoint should not release such spam emails and should strictly block such spam and spoof emails based on connection IPs. Currently, false positives occur in the product, and while this occurs in every product, it is an area where Proofpoint can focus on improving and reducing false positives. One email is enough for an end user to be deceived and lose money, so addressing this area is critical.
MK
Senior Security Analyst at Tata Consultancy
Unified security monitoring has reduced alert fatigue and improves proactive threat hunting
I use real-time monitoring in ReliaQuest GreyMatter, which significantly improves my security posture. The unified interface helps reduce alert fatigue. I would estimate it saves around 20% in alert fatigue reduction. The automated threat hunting capabilities in ReliaQuest GreyMatter help me stay ahead of threats. The machine learning algorithm benefits my threat intelligence by providing deeper insights and predictions. I use various metrics to rate the success of the predictive threat intelligence in ReliaQuest GreyMatter.

Quotes from Members

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

Pros

"Proofpoint Email Protection's advantage is that, when it's working properly, it tends to catch more threats as compared to other products."
"Proofpoint Email Protection's initial installation is straightforward. It took us less than a day to complete the implementation."
"The solution has very strong detection for most of the phishing and malicious emails received from the outside."
"On a day-to-day basis, Proofpoint Email Protection has saved me about 50% of my workload, which has been a real godsend."
"Proofpoint Email Protection has positively impacted my organization by making things safer; when we rolled it out, it gave us better filtering than the previous product that we were using, capturing a lot more of the malicious material and being easier to use."
"Proofpoint provides an expandable project model, including DLP, email archiving, and encryption, which makes it a complete email security solution."
"The flexibility is unbelievable and you could get extremely creative to accommodate real case scenarios."
"The initial implementation is pretty easy to handle."
"ReliaQuest GreyMatter saves around 60% of time or resources."
"ReliaQuest GreyMatter has helped us to reduce security incidents by 89%, which is a significant amount of incidents we have seen."
 

Cons

"As a manager with multiple customers using Proofpoint Email Protection, having the ability to manage the admin console more efficiently would be beneficial."
"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."
"Proofpoint Email Protection is an expensive solution."
"To move to a more sophisticated email security solution was cost-prohibitive. When you compare it to others, it was too expensive."
"There are user interface complexities that require integration with a SOC team, which needs time and training."
"The areas that have room for improvement in Proofpoint Email Protection include their cost of ownership, which is fairly high."
"I rate the technical support at a 3 out of 10, with 10 being the best."
"Integration and filtering out who you want and don't want to have integrated ID could be improved."
"Areas that have room for improvement include user interface and integration."
 

Pricing and Cost Advice

"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."
"Proofpoint is fairly expensive."
"The licensing cost of Proofpoint Email Protection is a lot higher than other solutions, such as Barracuda."
"We sell annual licenses for this solution."
"The licensing model for Proofpoint Email Protection is simple. It's based on the number of users. Price-wise, Proofpoint Email Protection is a five out of ten because it's a pretty expensive solution."
"Pricing has recently been increased and the cost is a downside"
"Proofpoint Email Protection has comparable pricing."
"The solution is expensive."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Outsourcing Company
10%
Manufacturing Company
10%
Comms Service Provider
6%
Financial Services Firm
10%
Manufacturing Company
9%
Construction Company
8%
Retailer
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise25
Large Enterprise62
No data available
 

Questions from the Community

What needs improvement with Proofpoint Email Protection?
To improve Proofpoint Email Protection, I suggest breaking down the URL into one versus three different GUIs. Regarding Proofpoint Email Protection's AI capabilities, I think its governance and sec...
What is your primary use case for Proofpoint Email Protection?
My main use case for Proofpoint Email Protection includes phishing emails, spam, URL isolation, and training. I utilize the email protect portal to ensure that none of our employees in any of the b...
What needs improvement with ReliaQuest GreyMatter?
Areas that have room for improvement include user interface and integration.
What is your primary use case for ReliaQuest GreyMatter?
I use ReliaQuest GreyMatter for detection and response, XDR, and SIEM. The best features I like about GreyMatter the most are its efficiency and user experience.
 

Also Known As

Proofpoint Enterprise Protection, Proofpoint Digital Protection
No data available
 

Overview

 

Sample Customers

Blocket, University of Waterloo, Lincoln Memorial University, WellSpan Health, U-Haul, Carestream Health, Westinghouse
Information Not Available
Find out what your peers are saying about Proofpoint Email Protection vs. ReliaQuest GreyMatter and other solutions. Updated: September 2026.
913,924 professionals have used our research since 2012.