The closest Abnormal AI Security Mailbox alternatives are Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365 and INKY Behavioral Email Security Platform. Picking an Abnormal AI Security Mailbox 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.
Closest 48 alternatives shownClosest matches: Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365, INKY Behavioral Email Security PlatformPage updated Nov 2026
The product
by Abnormal Security
AI-powered email security operations platform for automated threat triage
Abnormal AI Security Mailbox is a commercial Email Security Platforms solution made by Abnormal Security. The closest matches by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365, INKY Behavioral Email Security Platform, Sophos Email, and GreatHorn Email Security. All 48 alternatives on this page are ranked the same way.
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VisitThese 8 solutions overlap most with Abnormal AI Security Mailbox. 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 and collaboration security for Microsoft 365 environments
Behavioral email security platform protecting inbound, outbound, and internal mail
Email security platform with phishing/BEC protection and MDR/XDR integration
Cloud-native email security platform for phishing detection and response
AI-powered email security platform for threat detection and compliance
Email security platform with AI-based threat detection and DLP capabilities
Enterprise email security platform for cloud and on-premise deployments
AI-driven email security platform for Microsoft 365 inbound/outbound threats
Email security platform with AI threat detection, BEC protection, and DLP
ATP solution for SaaS & email with AI-driven detection & auto-response
AI-powered anti-phishing platform for Microsoft 365 & Google Workspace.
Managed Proofpoint email security service for phishing & BEC protection.
AI-powered email security platform protecting against phishing, BEC, and ATO
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.
Cloud-based email security platform protecting against phishing, ransomware, BEC
Cloud-based email security platform protecting against phishing & ransomware
Email security platform protecting M365 & Google Workspace from threats
All-in-one email security platform for threat protection and compliance
Cloud-based email security platform with AI-powered threat detection
AI-driven email security platform for detecting advanced email threats
AI-powered email and collaboration security platform for threat detection
Email security platform protecting against fraud, malware, and spam threats
Cloud email security for Microsoft 365 and Google Workspace applications
Cloud workspace security platform for email, files, and account protection
AI-powered DMARC monitoring and email authentication security platform
Cloud-native email security platform with SEG and API-based protection
AI-powered email security platform detecting threats across email and messaging
Email security platform protecting against phishing, malware, and exploits
Email security platform for Microsoft 365 with AI-based threat detection
AI-powered inbound email security platform for phishing & malware detection
Email threat protection for Microsoft 365 with advanced detection capabilities
AI-powered email security platform with agentic automation and detection
MX-based email security platform using AI to block spam, phishing & malware
AI-powered email security platform for phishing and BEC protection
Email and web threat detection platform with AI-based behavioral analysis
AI-powered email security platform with behavioral detection and automation
Email security platform filtering spam, phishing, and malware threats
Email filtering service protecting against spam, viruses, and phishing.
Email security platform enhanced with multi-tenant mgmt & automation tools
Email security platform protecting against phishing, malware, and BEC attacks
AI-powered email security platform that detects phishing, BEC, and malware
Comprehensive email security & human risk mgmt platform with AI-powered protection
AI-native email security platform detecting phishing and BEC attacks
AI-based email security for M365 with phishing, BEC & malware detection.
Cloud-based email filtering blocking phishing, malware, spam & BEC attacks.
Common questions when weighing alternatives to Abnormal AI Security Mailbox.
The closest matches to Abnormal AI Security Mailbox by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365, INKY Behavioral Email Security Platform, Sophos Email, and GreatHorn Email Security. All of them are Email Security Platforms products.
This page shows 48 alternatives to Abnormal AI Security Mailbox, 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.
Abnormal AI Security Mailbox 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.
Abnormal AI Security Mailbox is a Email Security Platforms product in the Email & Messaging Security category. You can compare it with the 48 other Email Security Platforms products on this page.
View Fortra Email Security & Anti-PhishingFortra Email Security & Anti-Phishing alternativesAbnormal AI Security Mailbox vs Fortra Email Security & Anti-Phishing
Email and collaboration security for Microsoft 365 environments
Key features: 10 listed. See them on the Microsoft Defender for Office 365 page.
View Microsoft Defender for Office 365Microsoft Defender for Office 365 alternativesAbnormal AI Security Mailbox vs Microsoft Defender for Office 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 alternativesAbnormal AI Security Mailbox vs INKY Behavioral Email Security Platform
Email security platform with phishing/BEC protection and MDR/XDR integration
Key features: 10 listed. See them on the Sophos Email page.
View Sophos EmailSophos Email alternativesAbnormal AI Security Mailbox vs Sophos Email
Cloud-native email security platform for phishing detection and response
Key features: 10 listed. See them on the GreatHorn Email Security page.
View GreatHorn Email SecurityGreatHorn Email Security alternativesAbnormal AI Security Mailbox vs GreatHorn Email Security
AI-powered email security platform for threat detection and compliance
Key features: 10 listed. See them on the Trustifi AI Powered Email Security page.
View Trustifi AI Powered Email SecurityTrustifi AI Powered Email Security alternativesAbnormal AI Security Mailbox vs Trustifi AI Powered Email Security
Email security platform with AI-based threat detection and DLP capabilities
Key features: 10 listed. See them on the Proofpoint Core Email Protection page.
View Proofpoint Core Email ProtectionProofpoint Core Email Protection alternativesAbnormal AI Security Mailbox vs Proofpoint Core Email Protection
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 alternativesAbnormal AI Security Mailbox 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