KnowBe4 Cloud Email Security (Formerly Egress) Reviews & Product Details

KnowBe4 Cloud Email Security is a comprehensive AI-powered email protection platform that defends against sophisticated inbound and outbound email threats, transforming email from organizations' largest attack surface into a strengthened defense layer. Designed for businesses of all sizes—particularly those in regulated industries handling sensitive information—this platform addresses the critical challenge of insider risk and human error, which account for 68% of data breaches. The platform delivers three integrated solutions: Defend™ provides AI-powered adaptive anti-phishing that detects business email compromise, spear phishing, and zero-day attacks while educating users with real-time contextual warning banners. Prevent™ offers AI-native outbound email security preventing data breaches by detecting misdirected emails, data exfiltration attempts, and unauthorized sharing. Protect™ delivers end-to-end email encryption seamlessly integrated into Outlook with automated policy enforcement. Key Capabilities: - Minutes-to-deploy with native Microsoft 365 integration - Patented contextual machine learning adapting to organizational communication patterns - Comprehensive analytics revealing organizations typically miss 90% of outbound security incidents - API integrations with existing security infrastructure Part of the KnowBe4 HRM+ ecosystem, Cloud Email Security transforms employees from vulnerabilities into informed cybersecurity assets through proactive threat management.

Product Website

Seller

KnowBe4, Inc.

Discussions

KnowBe4 Cloud Email Security (Formerly Egress) Community

Languages Supported

English

Overview by

Marissa Marcos

Value at a Glance

Averages based on real user reviews.

Time to Implement

2 months

View More Pricing Information

KnowBe4 Cloud Email Security (Formerly Egress) Media

KnowBe4 Cloud Email Security (Formerly Egress) Demo - Secure emails with one-click

Full integration with Microsoft Outlook and Office 365 helps you secure and share data easily.

KnowBe4 Cloud Email Security (Formerly Egress) Demo - Revoke access to emails

Stop further access to content you’ve sent, by revoking access or recalling emails. Prevent data breaches, fix mistakes and control your data at all times.

KnowBe4 Cloud Email Security (Formerly Egress) Demo - Avoid sharing the wrong content

Scrutiny of subject line, message body and attachments against domains and recipient names prevents employees sharing sensitive information and, in turn, causing costly data breaches. Risk-based Protection goes beyond simple file name and type analysis to interrogate the data within an attachmen...

Official Downloads

(4)

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Critical Capabilities When Evaluating Integrated Cloud Email Security

Crawford Selects KnowBe4 Defend and Prevent to Enhance Microsoft 365 Email Security

Behavior-Based Email Security That Detects and Prevents Advanced Phishing Attacks

KnowBe4 Cloud Email Security (Formerly Egress) Reviews (73)

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Ricky R.

11/19/2025

"Effortlessly Improves Email Security with Intuitive Features"

4.5/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

I appreciate using KnowBe4 Cloud Email Security (Formerly Egress) because it effectively protects employees from both inbound and outbound email threats and aids in human risk mitigation. I value its capability to reduce risks associated with phishing, accidental disclosure, and providing insights about the riskiest users. The banners are a standout feature, automatically adding visual cues based on risk levels, which help users notice them easily and stay informed about potential threats. Additionally, it efficiently filters out unwanted spam and 'Graymail,' which reduces the noise in our inboxes significantly. The software integrates seamlessly with Microsoft 365, and the initial setup was very easy, with the implementation team making the onboarding process one of the smoothest I have ever experienced. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

The reporting could be better. I get a great dashboard but would love the ability to make custom reports much like my KnowBe4 phishing awareness portal. I would also like for PhishER and the Abuse mailbox to be merged. Review collected by and hosted on G2.com.

Response from Isa Munoz of KnowBe4 Cloud Email Security (Formerly Egress)

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Thank you for your wonderful feedback on our threat protection capabilities and seamless Microsoft 365 integration, Ricky! We're thrilled to hear that our implementation team delivered such a smooth onboarding experience. We appreciate your suggestions about enhanced custom reporting and PhishER integration with the Abuse mailbox. Your input helps us understand how to better unify the admin experience across our security ecosystem.

Philip P.

Information Systems Manager

Small-Business (50 or fewer emp.)

10/22/2025

"Outstanding Email Security with Smart Tagging and URL Protection"

4.5/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

How it manages email security at the user-level, the email tags that clearly tell the recipient what the risk of the email is and gives an opportunity to educate the recipient by clicking on the tag, and the "bublewrapping of URLs" that actively checks all links at the time of receipt and time of click to ensure it is going to a trusted location. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

Honestly, so far we have been very happy with the product, and I look forward to it getting more integrated with PhishER+ and other KB4 Security tools. Review collected by and hosted on G2.com.

What problems is KnowBe4 Cloud Email Security (Formerly Egress) solving and how is that benefiting you?

Securing Email at the end-user level, through active ML/AI that learns patterns and catches phishing emails that other vendors have a hard time with. It also serves as an additional layer of end-user education on data awarness through the smart tags that users can click on and gain more insight. It also keeps all URLs protected, so no URL re-directs can successfully bypass these checks. Regardless of URL the landing point is always checked at time of click and protected if required. Review collected by and hosted on G2.com.

Response from Isa Munoz of KnowBe4 Cloud Email Security (Formerly Egress)

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Thank you for this excellent review and for highlighting the educational value of our smart tagging and real-time URL protection! We're happy to hear how effectively our AI/ML is catching sophisticated threats and providing that crucial extra layer of user awareness. We share your excitement about deeper integration across the KnowBe4 ecosystem, and we're actively working to create an even more unified security experience for our customers.

Steven K.

Technical Support Analyst

Mid-Market (51-1000 emp.)

10/22/2025

"Great Email Security, but Dashboard UI Needs Improvement"

5/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

Egress is able to add the links into all of our emails to warn our staff about external email, suspicious mail, phishing emails, etc. It alleviates concerns from my end regarding end user mail. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

The rebranding itself was a little confusing to navigate and the UI of the dashboard leaves a bit to be desired for myself since I don't live within it very often. Review collected by and hosted on G2.com.

Stewart H.

IT Manager

Mid-Market (51-1000 emp.)

10/28/2025

"Great visibility and Efficient Bulk Remediation,"

5/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

Great visibility into the email traffic. I also like the ability to easily see similar malicious emails and remediate them in bulk. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

at times it would be nice if dangerous emails could be remediated from the list instead of opening them. Review collected by and hosted on G2.com.

Scott J.

Vice President of Information Technology

Mid-Market (51-1000 emp.)

10/14/2025

"Smart Banners and Graymail Are Game Changers, but Phish Blocking Needs Improvement"

5/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

The smart banners and graymail have been a true game changer for our company. We have cleaned up inboxes of clutter and allowed our people to focus on important email. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

I would like it to be a little more forceful in its blocking of phish emails when they are reported. We do also still have the occasional emails make it through all the filters that is obviously malicious. Review collected by and hosted on G2.com.

Duncan S.

IT Applications Manager

Mid-Market (51-1000 emp.)

7/14/2025

"Excellent product"

5/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

The administration console is well arranged and gives a clear overview of what malicious emails have been processed. Installation was straightforward and support steered us through configuration. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

It's easy to allow it to simply do its job and become less alert to threats because they are blocked. Review collected by and hosted on G2.com.

Verified User in Legal Services

Mid-Market (51-1000 emp.)

5/13/2025

"Egress has been a great replacement for Mimecast!"

5/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

Egress engineers made this deployment go very smoothly, there are almost too many positives to list but the most important pieces of Phishing and Ransomware detection have caught attacks that our former vendor and Microsoft Online protection have not caught in the past. The DLP feature has been great and has stopped multiple misdirected emails one of which could have been very harmful. The users love the Graymail folder and it really helps keep inboxes free of newsletters and solicited emails which has definitely enhanced productivity. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

The only enhancement request I would have is that when you mark something as "not graymail" it would move the message into the users inbox. Review collected by and hosted on G2.com.

Response from Isa Munoz of KnowBe4 Cloud Email Security (Formerly Egress)

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Thank you for sharing such a comprehensive review of Cloud Email Security! We're thrilled to hear about your smooth deployment experience and how our advanced detection capabilities are catching threats that other solutions missed. I'll share your suggestion about the Graymail folder functionality with our team. Thank you for being a valued KnowBe4 customer!

Verified User in Utilities

Mid-Market (51-1000 emp.)

10/22/2025

"User-Friendly Interface, But Support Could Be More Hands-On"

4.5/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

It is easy to navigate and use for not high tech personel. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

Sometimes support is difficult. Technicians do not want to connect to fix issues they like just email updates/ questions. Review collected by and hosted on G2.com.

Nathan J.

Head of Infrastructure and Networks

Mid-Market (51-1000 emp.)

7/15/2024

"Egress as an Intelligent Data Loss Protection Solution"

4/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

Onboarding very simple, support has been great throughout the process. Easy to install in both Outlook and Office 365. Does not generate a lot of noise for the end user. Good variety of rules that can be set up and customised via Egress technicians. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

Lack of reporting and alerting. Some features were not as described duing sales process. Long ongoing implementation of solution unexpected. Review collected by and hosted on G2.com.

What problems is KnowBe4 Cloud Email Security (Formerly Egress) solving and how is that benefiting you?

Egress Prevent is helping us to reduce the amount of data loss and incorrect emails sent out of our business. Users are notified when they potentially misdirect emails allowing them to review their decision before the email is delivered. It is helping us reduce the amount of mistakes made when sending emails to large groups or containing attachments. It is fully automated which allows IT to have minimal involvement in the day to day usage of the platform. Review collected by and hosted on G2.com.

Esteban S.

Systems Engineer

Mid-Market (51-1000 emp.)

11/11/2024

"Very good admin console"

5/5

What do you like best about KnowBe4 Cloud Email Security (Formerly Egress)?

One of the best things about Egress is the admin console. It has a lot of information available and is easy to use. Review collected by and hosted on G2.com.

What do you dislike about KnowBe4 Cloud Email Security (Formerly Egress)?

At this point, I don't dislike this product at all. Review collected by and hosted on G2.com.