The closest KnowBe4 Cloud Email Security alternatives are Fortra Email Security & Anti-Phishing, ConnectWise Email Security and Cellopoint Cloud Email Security Solution. Picking a KnowBe4 Cloud Email Security alternative comes down to fit: Email Security Platforms coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it.
43 alternativesClosest matches: Fortra Email Security & Anti-Phishing, ConnectWise Email Security, Cellopoint Cloud Email Security SolutionPage updated Nov 2026
The product
by KnowBe4
AI-driven email security platform for Microsoft 365 inbound/outbound threats
KnowBe4 Cloud Email Security is a commercial Email Security Platforms solution made by KnowBe4. The closest matches by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, ConnectWise Email Security, Cellopoint Cloud Email Security Solution, ESET Cloud Office Security, and Bitdefender GravityZone Extended Email Security. All 43 alternatives on this page are ranked the same way.
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VisitThese 8 solutions overlap most with KnowBe4 Cloud Email Security. Each row says what the product does and, when the overlap is big enough, which capabilities it shares.
Email security platform protecting against phishing, BEC, and data loss
Key features: DMARC email authentication and enforcement, Business email compromise detection, Spear phishing protection, Account takeover detection, Data loss prevention for sensitive data
Email security platform protecting against phishing, BEC, and data loss
Email security platform with AI threat detection, BEC protection, and DLP
Cloud-based email security platform protecting against phishing, ransomware, BEC
Cloud email security for Microsoft 365 and Google Workspace applications
Cloud-native email security platform with SEG and API-based protection
Behavioral email security platform protecting inbound, outbound, and internal mail
Enterprise email security platform for cloud and on-premise deployments
AI-powered anti-phishing platform for Microsoft 365 & Google Workspace.
Email and collaboration security for Microsoft 365 environments
AI-powered email security platform protecting against phishing, BEC, and ATO
Cloud-based email security platform protecting against phishing & ransomware
Email security platform protecting M365 & Google Workspace from threats
Cloud-based email security platform with AI-powered threat detection
Email security platform protecting against phishing, malware, and exploits
Email security platform for Microsoft 365 with AI-based threat detection
MX-based email security platform using AI to block spam, phishing & malware
Email filtering service protecting against spam, viruses, and phishing.
Email security platform enhanced with multi-tenant mgmt & automation tools
Comprehensive email security & human risk mgmt platform with AI-powered protection
Cloud-based anti-spam and antivirus email filtering with AI threat detection.
Agentic AI email security platform that investigates emails pre-delivery.
Cloud security platform for M365 covering email, backup, and awareness.
Cloud-based email security service that blocks spam, phishing, malware, and fraud attacks
Email gateway that blocks spam, phishing and malware before inbox delivery, made
Email security platform with phishing/BEC protection and MDR/XDR integration
AI-powered email security platform for threat detection and compliance
Email security platform with AI-based threat detection and DLP capabilities
Email security platform blocking spam, phishing, malware, and viruses
Email threat protection for Microsoft 365 with advanced detection capabilities
AI-based email security for M365 with phishing, BEC & malware detection.
Managed Proofpoint email security service for phishing & BEC protection.
Cloud-based email filtering blocking phishing, malware, spam & BEC attacks.
Cloudflare Cloud Email Security is a cloud-based email protection service that safeguards organizations against phishing, malware, spam, and other email-borne threats through integrated threat detection and prevention capabilities.
Email security platform with inline threat protection and compliant archiving
Cloud-native email security platform for phishing detection and response
All-in-one email security platform for threat protection and compliance
AI-powered email and collaboration security platform for threat detection
Email security platform protecting against fraud, malware, and spam threats
AI-powered email security operations platform for automated threat triage
Cloud workspace security platform for email, files, and account protection
AI-powered DMARC monitoring and email authentication security platform
Common questions when weighing alternatives to KnowBe4 Cloud Email Security.
The closest matches to KnowBe4 Cloud Email Security by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, ConnectWise Email Security, Cellopoint Cloud Email Security Solution, ESET Cloud Office Security, and Bitdefender GravityZone Extended Email Security. All of them are Email Security Platforms products.
This page shows 43 alternatives to KnowBe4 Cloud Email Security, all in the Email Security Platforms category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first.
KnowBe4 Cloud Email Security is a commercial Email Security Platforms product. It needs a paid license or subscription. Only commercial alternatives are listed here. Free and open source products are under /free.
KnowBe4 Cloud Email Security is a Email Security Platforms product in the Email & Messaging Security category. You can compare it with the 43 other Email Security Platforms products on this page.
View Fortra Email Security & Anti-PhishingFortra Email Security & Anti-Phishing alternativesKnowBe4 Cloud Email Security vs Fortra Email Security & Anti-Phishing
Email security platform with AI threat detection, BEC protection, and DLP
Key features: 10 listed. See them on the ConnectWise Email Security page.
View ConnectWise Email SecurityConnectWise Email Security alternativesKnowBe4 Cloud Email Security vs ConnectWise Email Security
Cloud-based email security platform protecting against phishing, ransomware, BEC
Key features: 8 listed. See them on the Cellopoint Cloud Email Security Solution page.
View Cellopoint Cloud Email Security SolutionCellopoint Cloud Email Security Solution alternativesKnowBe4 Cloud Email Security vs Cellopoint Cloud Email Security Solution
Cloud email security for Microsoft 365 and Google Workspace applications
Key features: 10 listed. See them on the ESET Cloud Office Security page.
View ESET Cloud Office SecurityESET Cloud Office Security alternativesKnowBe4 Cloud Email Security vs ESET Cloud Office Security
Cloud-native email security platform with SEG and API-based protection
Key features: 10 listed. See them on the Bitdefender GravityZone Extended Email Security page.
View Bitdefender GravityZone Extended Email SecurityBitdefender GravityZone Extended Email Security alternativesKnowBe4 Cloud Email Security vs Bitdefender GravityZone Extended Email Security
API-based email security platform for Microsoft 365 environments
Key features: 10 listed. See them on the Mesh 365 page.
View Mesh 365Mesh 365 alternativesKnowBe4 Cloud Email Security vs Mesh 365
Behavioral email security platform protecting inbound, outbound, and internal mail
Key features: 10 listed. See them on the INKY Behavioral Email Security Platform page.
View INKY Behavioral Email Security PlatformINKY Behavioral Email Security Platform alternativesKnowBe4 Cloud Email Security vs INKY Behavioral Email Security Platform
Enterprise email security platform for cloud and on-premise deployments
Key features: 10 listed. See them on the Broadcom Symantec Email Security page.
View Broadcom Symantec Email SecurityBroadcom Symantec Email Security alternativesKnowBe4 Cloud Email Security vs Broadcom Symantec Email Security
Need the answer fast? Best Email Security Solutions for Business picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more.See the shortlist