The product
GreatHorn Mailbox Intelligence
by GreatHorn
Email security tool empowering users to identify & report phishing threats
The closest GreatHorn Mailbox Intelligence alternatives are Egress Defend, PhishingBox KillPhish and Detect-Phish. Picking a GreatHorn Mailbox Intelligence alternative comes down to fit: Anti-Phishing 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.
41 alternativesClosest matches: Egress Defend, PhishingBox KillPhish, Detect-PhishPage updated Nov 2026
The product
GreatHorn Mailbox Intelligence
by GreatHorn
Email security tool empowering users to identify & report phishing threats
GreatHorn Mailbox Intelligence is a commercial Anti-Phishing solution made by GreatHorn. The closest matches by shared tags and NIST CSF 2.0 coverage are Egress Defend, PhishingBox KillPhish, Detect-Phish, TitanHQ PhishTitan, and Phriendly Phishing Phish Focus. All 41 alternatives on this page are ranked the same way.
These 8 solutions overlap most with GreatHorn Mailbox Intelligence. Each row says what the product does and, when the overlap is big enough, which capabilities it shares.
AI-powered anti-phishing solution for Microsoft 365 with behavioral detection
Key features: 10 listed. See them on the Egress Defend page.
View Egress DefendEgress Defend alternativesGreatHorn Mailbox Intelligence vs Egress Defend
Email threat scanning and reporting add-in for Microsoft 365 and Google
Key features: 10 listed. See them on the PhishingBox KillPhish page.
View PhishingBox KillPhishPhishingBox KillPhish alternativesGreatHorn Mailbox Intelligence vs PhishingBox KillPhish
Reported Email Analysis & Response
Key features: 10 listed. See them on the Detect-Phish page.
View Detect-PhishDetect-Phish alternativesGreatHorn Mailbox Intelligence vs Detect-Phish
Phishing protection and remediation solution for Microsoft 365 environments
Key features: 10 listed. See them on the TitanHQ PhishTitan page.
View TitanHQ PhishTitanTitanHQ PhishTitan alternativesGreatHorn Mailbox Intelligence vs TitanHQ PhishTitan
Email triage solution with threat analysis and automation for phishing detection
Key features: 10 listed. See them on the Phriendly Phishing Phish Focus page.
View Phriendly Phishing Phish FocusPhriendly Phishing Phish Focus alternativesGreatHorn Mailbox Intelligence vs Phriendly Phishing Phish Focus
AI-powered anti-phishing solution for Microsoft 365 environments
Key features: 10 listed. See them on the Cybersentriq Advanced Phishing Protection page.
View Cybersentriq Advanced Phishing ProtectionCybersentriq Advanced Phishing Protection alternativesGreatHorn Mailbox Intelligence vs Cybersentriq Advanced Phishing Protection
API-based email security for M365/Google with auto-retraction of phishing threats.
Key features: 7 listed. See them on the PhishFirewall PhishEQ page.
View PhishFirewall PhishEQPhishFirewall PhishEQ alternativesGreatHorn Mailbox Intelligence vs PhishFirewall PhishEQ
ML-based phishing protection and remediation add-on for M365.
Key features: 6 listed. See them on the SpamTitan PhishTitan page.
View SpamTitan PhishTitanSpamTitan PhishTitan alternativesGreatHorn Mailbox Intelligence vs SpamTitan PhishTitan
AI-powered anti-phishing solution for Microsoft 365 with behavioral detection
Email threat scanning and reporting add-in for Microsoft 365 and Google
Phishing protection and remediation solution for Microsoft 365 environments
Email triage solution with threat analysis and automation for phishing detection
AI-powered anti-phishing solution for Microsoft 365 environments
API-based email security for M365/Google with auto-retraction of phishing threats.
AI-based email security for Microsoft 365, built for MSPs to protect client mailboxes.
Centralized platform for reporting, analyzing, and responding to email threats
AI-powered multilayered phishing protection combining email & web security
AI-powered email security solution that detects and blocks phishing attempts.
AI-powered email security with phishing detection and employee training
Automated email monitoring tool for analyzing suspicious emails and URLs.
Post-perimeter phishing detection and automated remediation platform
Contextual email banner system that alerts users to email threats
AI-powered email incident response platform for phishing threat detection
Automates phishing email analysis, remediation, and user response via AI
Messaging security platform for mobile operators to block spam and fraud
AI-based real-time security engine for blocking web threats in browsers & agents
Browser-based phishing protection with AI-driven detection at point-of-click
Email security platform combining AI and human insights for phishing protection
Managed service for triaging and analyzing user-reported phishing emails
Anti-spearphishing solution protecting orgs from targeted email attacks
Phishing threat mgmt platform for reporting, analyzing & responding to threats
Neural network-based zero-day phishing & malvertising detection via global sensor network.
AI-powered phishing triage platform for analyzing employee-reported emails.
Protects Microsoft 365 users from phishing attacks using fake login pages
Email security service for analyzing suspicious emails reported by users
AI-powered phishing detection & response automation for SOC teams
Email scanning service that analyzes forwarded suspicious emails for threats.
Email phishing reporting plugin with incident analysis and threat mitigation.
Blocks phishing sites on employee devices using AI-based real-time classification.
Browser-based security product that detects social engineering and data loss risks across a
Email authentication platform for managing DMARC, SPF, DKIM to stop domain spoofing
Domain security checker for email authentication protocol verification
Browser extension for real-time phishing & impersonation detection with AI warnings.
Common questions when weighing alternatives to GreatHorn Mailbox Intelligence.
The closest matches to GreatHorn Mailbox Intelligence by shared tags and NIST CSF 2.0 coverage are Egress Defend, PhishingBox KillPhish, Detect-Phish, TitanHQ PhishTitan, and Phriendly Phishing Phish Focus. All of them are Anti-Phishing products.
This page shows 41 alternatives to GreatHorn Mailbox Intelligence, all in the Anti-Phishing category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first.
GreatHorn Mailbox Intelligence is a commercial Anti-Phishing product. It needs a paid license or subscription. Only commercial alternatives are listed here. Free and open source products are under /free.
GreatHorn Mailbox Intelligence is a Anti-Phishing product in the Email & Messaging Security category. You can compare it with the 41 other Anti-Phishing products on this page.
No Anti-Phishing shortlist yet. This is the closest one.
Updated 2026-11-02
See the shortlist
