GreatHorn Mailbox Intelligence vs TitanHQ PhishTitan: Side-by-Side Comparison (2026)

Teams running Microsoft 365 or Google Workspace who need users to actually catch phishing will find GreatHorn Mailbox Intelligence worthwhile, because the visual sender indicators and on-click URL analysis force friction into the attack chain where it matters most. The tool scores across all three NIST Detect and Awareness categories, with particular strength in DE.CM continuous monitoring and real-time risk assessment that surfaces threats before the user opens them. Skip this if your organization has already deployed a mature endpoint detection layer and expects email security to handle lateral movement detection; GreatHorn prioritizes the user reporting loop and initial threat identification, not forensic analysis of compromise. Mid-market and SMB teams managing Microsoft 365 environments will get the most from PhishTitan because it catches business email compromise and quishing attacks that native Exchange Online Protection misses, then removes them automatically across tenants without manual intervention. The native M365 integration means it scans inline without the latency and complexity of API-based competitors, and time-of-click URL rewriting stops credential theft even when users ignore banner warnings. Skip this if you need post-incident forensics and extended response playbooks; PhishTitan prioritizes detection and remediation over the kind of deep investigation that larger SOCs demand.

Based on our analysis of core features, integrations, company size fit, deployment model, here is our conclusion: