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ThreatPhishing & impersonation

Fake postal service or customs agency claiming a package is held at customs or the post office and requiring a delivery or customs fee payment via email link to release it — advance-fee fraud; real customs fees are collected through official carrier portals or at delivery, not unsolicited email payment links.

package-delivery-customs-fee-phish

What this tier means

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

How Gorganizer detects this

Fake postal service, courier, or customs agency claiming a package or parcel is held at customs or the post office and requiring the recipient to pay a delivery fee or customs fee via email link to release it — advance-fee fraud. Real customs fees for inbound international packages from legitimate carriers (USPS, FedEx, UPS, DHL, Canada Post) are collected through official carrier portals or at the time of delivery with a paper notice; no legitimate postal or customs authority solicits fee payment via an unsolicited email payment link. Distinct from package-customs-duty-phish (broader customs-duty vocabulary) — this signal specifically targets the "held at customs / post office, pay fee to release" narrative. Detection: package/parcel held at customs/post office + pay delivery fee/customs fee to release vocabulary + no List-Unsubscribe + no In-Reply-To + not protected sender. Trash score: +3. Source: GC1-R25; USPS Inspector General package fee scam advisory; FTC fake customs fee scam report 2025.

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 over 1,800 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.

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