AI study shows older domains and authenticated emails double open rates for journalists

Subject‑line experiments show that lines stating a finding generate 43.1% opens and 1.37% replies, while teased lines drop to 39.8% opens and 0.88% replies. Concrete phrasing (e.g., “Raleigh Ranked #1 City for New Homeowners”) yields 43% opens versus 34.6% for vague wording. Placing the key statistic in the first 1‑3 words lifts open rates to 46% versus 38.9% when placed later. AI‑generated email summaries from Google, Apple and Microsoft pull most content from the first half of the message (87.1%, 82.5% and 65.4% respectively), favor bulleted text (Microsoft 92%, Google 65%, Apple 64%) and rarely include personalized intros.