Fake port disruption / cargo hold / customs clearance fee urgency lure targeting importers and freight forwarders — "Your shipment is held at port — pay customs clearance / release fee immediately or cargo will be returned / auctioned." Real port / customs notifications come from CBP (cbp.gov), the freight forwarder, or the shipping line's official domain — never via cold inbound email demanding emergency payment to an unknown portal. Detection: port disruption/cargo hold/customs clearance + fee/payment urgency + urgency language + no In-Reply-To + no List-Unsubscribe. Source: GC1 R16; CBP phishing advisory 2025.

What this tier means

High-confidence threat indicator — phishing, impersonation, BEC, or scam pattern. Strong contributor to the trash decision.

False-positive guard

Every signal in Gorganizer feeds a multi-module score — never a sole verdict. This is a threat-tier signal — it adds a strong contribution to the trash score. The full pipeline still requires convergence across multiple modules + a margin over the safety floor before deletion happens, and Gmail's trash (30-day recovery) is always used — never permanent delete.

About the scoring engine

Gorganizer's scoring engine emits 2,143+ signals across six modules — headers, sender, subject, body, attachments, and structural metadata. Every email is scored by every module independently; the final verdict requires multiple modules to agree and the trash score to beat the safety floor by a margin.

Sacred safety guards — never delete starred emails, replies, calendar invites, receipts/invoices, or attachments — apply unconditionally regardless of any signal.