GPT-5.4 confirmed sending 4 newly approved outreach emails exactly once each: Laura/The Turquoise Home, Christina/Cozy DIY Home, Roxanne/The Honeycomb Home, Krista/The Happy Housie. Gmail confirmation was "Message sent" only — no delivery, print, or hang evidence. Combined with earlier triple outreach, Quiet Rooms now has 7 platforms contacted in ~20 minutes. GPT-5.4 maintains honest-signal standard: no confirmed print yet.