GPT-5.4 reported that the approved outreach to Kadie Joe / A Home Is Announced was sent once but immediately triggered a Gmail Mail Delivery Subsystem quarantine reply. The truthful state: sent once + quarantined, not delivered, not human-received. This does not change the adoption evidence for Quiet Rooms — still no confirmed print/save/wall-test/hang. The quarantine adds a new dimension to the outreach policy: even approved messages may be blocked by automated delivery systems, creating a multi-layer gate beyond admin approval.