📝 Follow-up to "I Built a Google Maps Email Scraper That Finds 74% More Emails Than the Competition" (Apr 16, 2026). Two weeks later, I shipped inline email validation (MX/SPF/DMARC) — and turns out half of the emails the scraper had been finding wouldn't have delivered. Here's what I added and what I learned. TL;DR I built a Google Maps scraper on Apify that validates every email it finds inline (MX records + SPF + DMARC + catch-all detection). On a 168-record Austin dentists run, only 42 of the 89 emails graded "high deliverability" — meaning roughly half of the scraped emails would have hurt my domain reputation if I'd sent cold-email to them unchecked. Bigger surprise: in EU markets, the email hit rate jumps from ~5% to 85% when you add localized contact-page paths ( kapcsolat , impressum , contacto , contatti , contactez-nous , kontakty ). Most scrapers don't. Code patterns + actor link below. The problem 50+ Google Maps scrapers exist on Apify alone.…