GreatHorn Mailbox Intelligence vs Joe Sandbox Mail Monitor: Side-by-Side Comparison (2026)

GreatHorn Mailbox Intelligence

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.

Joe Sandbox Mail Monitor

Security teams fielding high volumes of user-reported phishing will cut false-positive triage time in half with Joe Sandbox Mail Monitor's automated forwarding analysis, which skips the manual upload-download cycle that kills SOC productivity. The tool's native integration with Joe Sandbox Cloud and configurable verdict replies sent back to reporters close the feedback loop that actually changes user behavior, covering both DE.CM continuous monitoring and PR.AT awareness training. Skip this if your organization needs deep post-breach forensics or threat hunting; Mail Monitor is detection and triage, not investigation.