Fluency Email Rule Change Workflow vs Untitled Goose Tool: Side-by-Side Comparison (2026)

Mid-market and enterprise security teams fighting business email compromise will find real value in Fluency Email Rule Change Workflow because it catches the forwarding rules and auto-redirects that attackers set up after gaining mailbox access, a detection gap most EDR and email gateways leave open. The tool maps directly to NIST DE.CM and DE.AE by continuously monitoring rule modifications and analyzing suspicious patterns in real time, giving you visibility into a compromise vector that typically goes undetected for weeks. Skip this if your organization relies on Microsoft 365 native alerting or has already deployed third-party email security that includes rule-change monitoring; the value proposition shrinks when you're already instrumenting those signals elsewhere. Security teams investigating compromises in Azure/M365 environments will get the most from Untitled Goose Tool because it hunts across AzureAD, tenant configurations, and mailbox artifacts in ways native Microsoft tools don't expose. The 952 GitHub stars and active community contributions signal real adoption among incident responders who've already chosen it over commercial alternatives. Skip this if you need a polished UI or vendor support contracts; Untitled Goose Tool rewards operators comfortable reading code and building queries, not clicking through wizards.

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