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Proofpoint Email Protection vs Sublime Security 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

Microsoft Defender for Offi...
Sponsored
Ranking in Email Security
1st
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
48
Ranking in other categories
Advanced Threat Protection (ATP) (1st), Microsoft Security Suite (11th)
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)
Sublime Security
Ranking in Email Security
23rd
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 13.1%, down from 19.0% compared to the previous year. The mindshare of Proofpoint Email Protection is 8.1%, down from 12.3% compared to the previous year. The mindshare of Sublime Security is 1.3%, up from 0.6% 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.
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…
LARK IT - PeerSpot reviewer
Easy to setup, stable and highly scalable
The ability for users to look at their own quarantine box needs improvement. So at the moment, it doesn't give you the ability to see every email that has been quarantined. No end-user has the ability to see what's being quarantined. It's only people who have access to the back-end platform that can actually see what has been quarantined. The end user doesn't know if they have an email that has been quarantined, only if they're expecting something that didn't come through. In future releases, I would just like to see that ability for users to see what's being quarantined and what's not quarantined but safe. Just those genuine false positives.

Quotes from Members

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

Pros

"The initial setup was easy."
"The risk level notifications are most valuable. We get to know what kind of intrusion or attack is there, and we can fix a problem on time."
"Some of the valuable features on the email side are anti-phishing, anti-malware, and Safe Links."
"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."
"We use Microsoft Defender for its ability to integrate with existing business technologies, which is beneficial for protecting business areas."
"The good part is that you don't have to configure it, which is very convenient."
"I would say that 90% of the spam and phishing attack emails get blocked right off the bat."
"Scalability-wise, I do not think there are any issues so far."
"The archive feature is valuable."
"The stability is very good."
"URL scanning and online relay service are the most valuable features of Proofpoint Email Protection."
"Proofpoint Email Protection is a good product, and its most beneficial feature is the Threat Response Auto-Pull. I also like that it's an integrated email security solution."
"The most valuable features are the business email compromise protection and targeted attack prevention."
"The solution's technical support is good. I rate the technical support a ten out of ten."
"The most valuable feature is the option to edit the inbound security."
"The solution has very strong detection for most of the phishing and malicious emails received from the outside."
"I like its ability to detect and block."
 

Cons

"The custom alerts have to improve a lot."
"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."
"The pre-sales cost calculations could be more transparent."
"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."
"The XDR dashboard has room for improvement."
"Microsoft Defender for Office 365 must improve the overall management style, including the GUI. It also needs to change the filters so that it is easy to whitelist and blacklist data."
"There's room for improvement regarding the time frame for retrieving emails."
"Sometimes, phishing emails manage to pass through the filter, so the system needs to enhance its phishing email detection capabilities."
"Integration and filtering out who you want and don't want to have integrated ID could be improved."
"We'd like to have the ability to create more customized reports."
"Proofpoint Email Protection is an expensive solution."
"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."
"One major threat is QR code phishing, along with TOAD (Telephone-Oriented Attack Delivery). TOAD attacks don't include links, URLs, or attachments in emails. Instead, attackers try to trick you into calling them, often by offering something enticing like a 50% discount on football matches."
"The false positives are an issue."
"The solution's server console and cluster dashboard have been the same for four years so need to be upgraded."
"We find the cost to be prohibitive."
"The ability for users to look at their own quarantine box needs improvement. So at the moment, it doesn't give you the ability to see every email that has been quarantined. No end-user has the ability to see what's being quarantined. It's only people who have access to the back-end platform that can actually see what has been quarantined. The end user doesn't know if they have an email that has been quarantined, only if they're expecting something that didn't come through."
 

Pricing and Cost Advice

"Defender for 365 comes in various plans and licenses, along with other Microsoft security solutions. Purchasing this kind of package or security bundle gives good value for money, and that's what I recommend."
"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."
"From the pricing point of view, like any other product in the market, there is scope for negotiation."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
"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."
"The pricing is normal. Considering its popularity, it's not overpriced."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"In general, the pricing is competitive."
"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."
"Annually, it costs us about $92,000. This is pretty much what it costs us. There is no additional cost."
"The tool's pricing depends on the customer's preference, offering options for an annual license or a monthly subscription. The cost varies based on factors such as the number of users and specific requirements. Overall, the pricing is competitive."
"The licensing cost of Proofpoint Email Protection is a lot higher than other solutions, such as Barracuda."
"Clients pay for an annual subscription of Proofpoint Email Protection. Every client always finds it expensive."
"Pricing has recently been increased and the cost is a downside"
"The solution uses a licensing model that is reasonable compared to other products."
"I would rate the pricing of Sublime Security as a seven out of ten. It is reasonably well-priced."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Educational Organization
30%
Computer Software Company
11%
Financial Services Firm
8%
Manufacturing Company
6%
Computer Software Company
15%
Manufacturing Company
9%
University
8%
Financial Services Firm
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?
I don't have detailed specifics on pricing, setup cost, or licensing.
What needs improvement with Microsoft Defender for Office 365?
I am generally satisfied with how it currently is. If I could improve anything, I would reduce the cost.
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.
What do you like most about Sublime Security?
I like its ability to detect and block.
What is your experience regarding pricing and costs for Sublime Security?
I would rate the pricing of Sublime Security as a seven. It is reasonably well-priced.
What needs improvement with Sublime Security?
The ability for users to look at their own quarantine box needs improvement. So at the moment, it doesn't give you th...
 

Also Known As

MS Defender for Office 365
Proofpoint Enterprise Protection, Cofense PhishMe, Proofpoint Digital Protection
No data available
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
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 Microsoft, Cisco, Proofpoint and others in Email Security. Updated: March 2025.
845,406 professionals have used our research since 2012.