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Proofpoint Email Protection vs Trustifi Inbound Shield 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...
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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)
Proofpoint Email Protection
Ranking in Email Security
2nd
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 (3rd), Secure Email Gateway (SEG) (2nd)
Trustifi Inbound Shield
Ranking in Email Security
40th
Average Rating
6.0
Reviews Sentiment
6.1
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

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 Proofpoint Email Protection is 8.1%, down from 11.7% compared to the previous year. The mindshare of Trustifi Inbound Shield is 0.2%, up from 0.1% 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…
Joji John - PeerSpot reviewer
A simple and easy-to-handle solution that does not need multiple configurations, but its pricing could be improved
Trustifi Inbound Shield is a simple and easy-to-handle solution where we don't have to go for multiple configurations. A single IT admin supporting over 100 or 200 users can easily understand everyday reports. Trustifi Inbound Shield is a user-friendly solution that even simple lay people can understand. The product helps our customers avoid 95% of unwanted phishing emails.

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."
"The benefit that stands out to me is the ability for multiple individuals to collaborate simultaneously within the same document. Additionally, there is the option to save the document directly in the integrated OneDrive or SharePoint."
"Our customers are satisfied with Defender for 365 because Microsoft products are easy to use and customize to meet the client's needs. Everything is in one place, so we can adjust policies as needed for phishing, DLP, ATP, or any other security features that our clients want to apply."
"The stability of Microsoft Defender for Office 365 is fantastic."
"The initial setup is straightforward. You just add the license, click it, and then you can set up the rules. It is quite simple."
"The solution is very easy to use. All you have to do is to assign the license to the end-user and it's done. The customer will only have the feature activated, and the solution will monitor the emails to determine if they are a threat or not."
"Microsoft Defender for Office 365's most valuable features are safe attachments and safe links."
"Defender enables us to secure all 365-related activity from a single place. It gives us visibility into everything happening in Outlook, protecting us against phishing and other email-based threats. Defender helps us detect any suspicious behaviors."
"The initial implementation is pretty easy to handle."
"Its anti-phishing functionality is the most valuable. Certainly, the biggest problem I have is phishing."
"The most valuable feature of Proofpoint Email Protection is the TAP Dashboard. It provides more detailed information that can be used for forensic analysis. This is an advantage that other email security providers, such as Cisco, IronPort, or Microsoft do not offer in their dashboards."
"The solution offers very good flexibility. You can blacklist or whitelist with ease."
"The most valuable features of Proofpoint Email Protection are the performance from being on the cloud."
"The solution scales well."
"A one-stop shop for email protection"
"Proofpoint provides an expandable project model, including DLP, email archiving, and encryption, which makes it a complete email security solution."
"Trustifi Inbound Shield is a simple and easy-to-handle solution where we don't have to go for multiple configurations."
 

Cons

"We still see many false positives from time to time with Microsoft Defender for Office 365, so it would be good if we can reduce those false positives and provide better workflows for our end users, as sometimes they may not know what to do when they encounter a false positive."
"The only thing they should improve is the licensing model. They should stop changing it. A year ago, the five features I mentioned were included in one product. Now, three of them are bundled into one product, and you have to pay extra for the other two. I don't mind paying extra, but I don't want them to change it every year or every six months. I need to know what I'm looking at and not worry about it next year."
"There's room for improvement regarding the time frame for retrieving emails."
"About eight months ago, we started to measure the quantity of phishing and spam that we have been receiving, and it has been increasing a lot. That means that protection for our email is not as good as we were expecting."
"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 wants its well-paying customers to finish testing some of its half-baked products, find bugs, and report bugs back to Microsoft's team, which is a little frustrating for those who have to manage it and roll it up to thousands of people across the organization."
"Microsoft should provide more documentation for users so they can self-educate. I would like to see more documentation for advanced security features."
"Microsoft Defender for Office 365 should improve the troubleshooting tools. It's unclear whether the device is blocked at the firewall level or at the device itself. The granularity needed for troubleshooting is currently lacking. From my perspective, Microsoft should address this issue to benefit many users who likely share the same sentiment."
"The product's deployment is complex and requires technical knowledge."
"The solution could lower its price."
"Integration and filtering out who you want and don't want to have integrated ID could be improved."
"The email DLP portion could be a bit easier."
"It's scalable, but the devil's in the details — you have to know your email volumes."
"Proofpoint should have better integration with complex environments that need more than one instance of Proofpoint, as there are issues with nested instances."
"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 support team was a bit slow."
"The solution's pricing is very high compared to other products like Barracuda and should be improved."
 

Pricing and Cost Advice

"Defender is a little bit more expensive as compared to others. We are in the manufacturing environment. So, we don't have a high budget for all of our endpoint devices. Its cost is a major concern for us."
"The pricing has become expensive."
"The product is expensive."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"Microsoft Defender for Office 365 is an add-on to the Office license. Many customers are purchasing this solution."
"It is much more expensive than using another solution because we have had to include some options and upgrade our license."
"For large enterprise organizations, they can definitely afford it, but for small and medium organizations, they might struggle to cover the expenses."
"For licensing, it's usually a yearly package for customers who are subscribed to Office 365, but they can also pay on a monthly basis."
"Proofpoint Email Protection is a reasonably priced product, which means that it is neither too low nor too high in terms of price."
"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."
"The price is reasonable."
"The solution is expensive."
"I rate the product price a seven on a scale of one to ten, where one is low price and ten is high price."
"Customers pay around $90,000 yearly for a 1,000-user organization, with the subscription license being the main expense, apart from implementation fees."
"The licensing cost of Proofpoint Email Protection is a lot higher than other solutions, such as Barracuda."
"The solution uses a licensing model that is reasonable compared to other products."
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%
Educational Organization
26%
Computer Software Company
12%
Financial Services Firm
8%
Manufacturing Company
6%
No data available
 

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?
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 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 Trustifi Inbound Shield?
Trustifi Inbound Shield is a simple and easy-to-handle solution where we don't have to go for multiple configurations.
What needs improvement with Trustifi Inbound Shield?
The solution's pricing is very high compared to other products like Barracuda and should be improved.
What advice do you have for others considering Trustifi Inbound Shield?
Trustifi Inbound Shield is deployed on the cloud in our organization. I would recommend Trustifi Inbound Shield to us...
 

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, Proofpoint, Cisco and others in Email Security. Updated: May 2025.
851,604 professionals have used our research since 2012.