URL shortener host in subject line — protocol-free phishing bait
subject-url-shortener
What this tier means
High-confidence threat indicator — phishing, impersonation, BEC, or scam pattern. Strong contributor to the trash decision.
How Gorganizer detects this
The subject line contains a bare URL-shortener host like `bit.ly/free-gift` or `tinyurl.com/offer` without a protocol prefix. Real-world spam routinely uses bare shortener hosts in subjects because anti-spam filters scanning for protocol-prefixed URLs miss them entirely. Legitimate senders never put shortener URLs in a subject line — branded mail uses the company's own domain in plain prose. Narrower gap-filler complementing the broader `url-in-subject` signal which only matches `https?://` and `www.` prefixes.
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.
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