Name: KnowBe4 Cloud Email Security
Rating: 4.7 (486 reviews)

Overview

Product Information on KnowBe4 Cloud Email Security

Updated 13th October 2025

What is KnowBe4 Cloud Email Security?

KnowBe4 Cloud Email Security is a software designed to help organizations defend against a range of email-based threats, including phishing, malware, and spam. The software leverages machine learning and behavioral analysis to detect suspicious emails and prevent harmful content from reaching user inboxes. It provides centralized management, real-time reporting, and integrates with existing email platforms to enable administrators to monitor and configure security policies effectively. The software addresses the business problem of safeguarding sensitive information and business processes from email-driven cyberattacks by filtering incoming messages and offering automated remediation to reduce risk and enhance email security posture.

Overall experience with KnowBe4 Cloud Email Security

Manager, IT Security and Risk Management

500M - 1B USD, Healthcare and Biotech

FAVORABLE

“Automated Knowbe4 Cloud Email Security Setup Streamlines Microsoft 365 Integration Process”

5.0

Mar 18, 2026

This text serves as a placeholder and does not reflect the user’s review responses or opinions. This text serves as a placeholder and does not reflect the user’s review responses or opinions. This text serves as a placeholder and does not reflect the user’s review responses or opinions.

Chief Information Officer

<50M USD, Healthcare and Biotech

CRITICAL

“Challenges Identified in Portal Integration and Notification Effectiveness Across Modules”

3.0

Mar 18, 2026

This text serves as a placeholder and does not reflect the user’s review responses or opinions. This text serves as a placeholder and does not reflect the user’s review responses or opinions. This text serves as a placeholder and does not reflect the user’s review responses or opinions.

Badges

Gartner Peer Insights recognizes vendors who meet or exceed both the market average Overall Experience and the market average User Interest and Adoption score through a Customers’ Choice distinction.

For Market:
Email Security

About Company

Company Description

KnowBe4, the provider of the security awareness and compliance training and simulated social engineering platform, is used by nearly 70,000 organizations worldwide. KnowBe4 helps organizations address the human element of security by raising awareness of ransomware, CEO fraud and other social engineering tactics through a new-school approach to security awareness and compliance training. KnowBe4 empowers your workforce to make smarter security decisions every day.

Company Details

Year Founded

2010

Head office location

Clearwater, United States

Number of employees

1001 - 5000

Website

http://www.knowbe4.com

Do You Manage Peer Insights at KnowBe4?

Access Vendor Portal to update and manage your profile.

Key Insights

A Snapshot of What Matters - Based on Validated User Reviews

User Sentiment About KnowBe4 Cloud Email Security

Reviewer Insights for: KnowBe4 Cloud Email Security

Deciding Factors: KnowBe4 Cloud Email Security Vs. Market Average

Performance of KnowBe4 Cloud Email Security Across Market Features

KnowBe4 Cloud Email Security Likes & Dislikes

The dashboard breaks down the dangerous, suspicious, and graymail, then Spam, and you can click into each category without having to load an entire list then filter afterwards. The allow/Deny list it has built in is also very useful and can be added with a click, along with the URL rewriting - however I would suggest you also manually add the allow/deny rules for addresses and domains that you put into KB4 defend, in your exchange in case you ever switch security tools so that you dont lose them. I also like that it has the ability to insert the colorful banners to alert users of what kind of topics or dangers are present in the email. Another great feature is that when you first roll it out, it can be to just a target group, or everyone, and you can enable silent mode so that it doesnt start putting banners into all your emails until its ready and has learned your environment better. There is an investigate function of the review emails section, where on each email you can see where in the users mailbox the email currently sits, whether or not the user has clicked any links or replied, and you can view the email in the defend dashboard too, really make the tool extremely useful for troubleshooting and review.

1) The Defend Portal confuses the resolution and the remediation. I can manually set the resolution, but not the remediation. I can search on remediation, but not resolution. 2) Defend sends me an email every time it sees something to remediate; however, the majority of them are automatically remediated and quarantined. I don't need to be notified of those, only the ones they didn't automatically remediate, i.e. the ones I need to take action on. 3) The connection between Defend and the KnowBe4 platform is not mature. I knew that going in and expect them to resolve it. The sooner the better. 4) PhishER is difficult to resolve issues in. The Queries take a long time and the result is not clear. I'll query off of a particular reported email and ask that all emails found be quarantined. The query will return 0 of 0. Did it not include the original email? Did that original email get quarantined? 5) The products are so new to the KnowBe4 team that the training has not been smooth. And the people trying to step me through the issues don't always know what the product can and can't do and don't know best practices in using the products, especially Defend and PhishER together.

Top KnowBe4 Cloud Email Security Alternatives

4.6

(1401 Ratings)

4.7

(942 Ratings)

4.5

(623 Ratings)

View All Alternatives

Peer Discussions

KnowBe4 Cloud Email Security Reviews and Ratings

Manager, IT Security and Risk Management
50M-1B USD
Healthcare and Biotech
Review Source
Automated Knowbe4 Cloud Email Security Setup Streamlines Microsoft 365 Integration Process
5.0
Mar 18, 2026
The Knowbe4 Cloud Email Security, aka Knowbe4 Defend, in relation to Microsoft 365 - has a lot of setup involved, but luckily its almost all automated with a script that KB4 pre-built to connect the services in your Azure environment. The deployment team and the engineer we had ere very good, communicated well and timely, and the engineer knew how to fix certain pain points, which were mainly just customization options that we were choosing to enforce outside the regular deployment plan the provided to us. Once it was up and running, like any other AI tool, it takes time to learn your environment and then fine tune its detections. The dashboards and email notifications are exceptional.

Manager, IT Security and Risk Management

50M-1B USD

Healthcare and Biotech

Review Source

Automated Knowbe4 Cloud Email Security Setup Streamlines Microsoft 365 Integration Process

5.0

Mar 18, 2026

The Knowbe4 Cloud Email Security, aka Knowbe4 Defend, in relation to Microsoft 365 - has a lot of setup involved, but luckily its almost all automated with a script that KB4 pre-built to connect the services in your Azure environment. The deployment team and the engineer we had ere very good, communicated well and timely, and the engineer knew how to fix certain pain points, which were mainly just customization options that we were choosing to enforce outside the regular deployment plan the provided to us. Once it was up and running, like any other AI tool, it takes time to learn your environment and then fine tune its detections. The dashboards and email notifications are exceptional.

Read All 533 Reviews

Get unlimited access to verified peer reviews and insights

Read unlimited Gartner-vetted product reviews

View and share valuable product insights

Download full product profiles

Review products you use today

Overview

Product Information on KnowBe4 Cloud Email Security

What is KnowBe4 Cloud Email Security?

KnowBe4 Cloud Email Security Pricing

Overall experience with KnowBe4 Cloud Email Security

“Automated Knowbe4 Cloud Email Security Setup Streamlines Microsoft 365 Integration Process”

“Challenges Identified in Portal Integration and Notification Effectiveness Across Modules”

Badges

About Company

Company Description

Company Details

Key Insights

A Snapshot of What Matters - Based on Validated User Reviews

User Sentiment About KnowBe4 Cloud Email Security

Reviewer Insights for: KnowBe4 Cloud Email Security

Deciding Factors: KnowBe4 Cloud Email Security Vs. Market Average

Performance of KnowBe4 Cloud Email Security Across Market Features

KnowBe4 Cloud Email Security Likes & Dislikes

Top KnowBe4 Cloud Email Security Alternatives

1. Proofpoint Threat Protection

2. Check Point Harmony Email & Collaboration

3. Mimecast Advanced Email Security

Peer Discussions

KnowBe4 Cloud Email Security Reviews and Ratings

Automated Knowbe4 Cloud Email Security Setup Streamlines Microsoft 365 Integration Process

Automated Knowbe4 Cloud Email Security Setup Streamlines Microsoft 365 Integration Process

Read All 533 Reviews

Recommended Gartner Insights

About Company

Company Description

Company Details

User Sentiment About KnowBe4 Cloud Email Security

Reviewer Insights for: KnowBe4 Cloud Email Security

Deciding Factors: KnowBe4 Cloud Email Security Vs. Market Average

Performance of KnowBe4 Cloud Email Security Across Market Features

KnowBe4 Cloud Email Security Likes & Dislikes

Top KnowBe4 Cloud Email Security Alternatives

1. Proofpoint Threat Protection

2. Check Point Harmony Email & Collaboration

3. Mimecast Advanced Email Security

Recommended Gartner Insights

KnowBe4 Cloud Email Security Reviews and Ratings

Automated Knowbe4 Cloud Email Security Setup Streamlines Microsoft 365 Integration Process

Automated Knowbe4 Cloud Email Security Setup Streamlines Microsoft 365 Integration Process

Read All 533 Reviews

4.7

(486 Ratings)

Rating Distribution