Reply-To base domain differs from From address base domain — classic phishing misdirection.
reply-to-domain-divergence
What this tier means
Warning signal — bulk / marketing / mild spam. Contributes to the trash score but is not by itself sufficient.
How Gorganizer detects this
Reply-To base domain differs from From address base domain — a classic phishing misdirection tactic. Attackers present a trusted From identity while routing replies to an attacker-controlled mailbox. Example: From: billing@trusted-company.com, Reply-To: harvest@attacker-domain.com. Soft signal (+3) complementing the header-layer reply-to-mismatch. Fires when: Reply-To header present + Reply-To base domain ≠ From base domain + no In-Reply-To. Source: GE-R8; RFC 5322 Reply-To attack pattern; FBI IC3 BEC advisory.
False-positive guard
Every signal in Gorganizer feeds a multi-module score — never a sole verdict. This is a warning-tier signal — bulk / marketing / mild spam. It contributes to the trash score but never triggers deletion on its own. Gorganizer requires multiple signals + a margin over the safety floor before any email is moved to trash.
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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