{"type": "article", "title": "How I Built an Autonomous B2B Lead Enrichment & SMTP Verification Engine in Python for $0.003/Lead", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/how-i-built-an-autonomous-b2b-lead-enrichment-smtp-verification-engine-in-python", "original_source": "https://dev.to/reigen/how-i-built-an-autonomous-b2b-lead-enrichment-smtp-verification-engine-in-python-for-0003lead-1cga", "published": "2026-09-30T18:37:14+00:00", "accessed": "2026-09-30", "id": "how-i-built-an-autonomous-b2b-lead-enrichment-smtp-verification-engine-in-python"}