How to Enrich 1,000 Google Maps & Domain Leads with DNS MX-Verified Emails & Ad Pixels in n8n / Clay for $5

Description and use

The recipe enables efficient enrichment of 1,000 Google Maps leads by verifying MX records, collecting CMS, pixel, and widget data, and filtering personal emails for GDPR compliance.

Problem

B2B teams overpay $50–$150 per 1,000 leads for enrichment credits or use legacy scrapers that return unverified emails.

Outcome

The recipe enables cost‑effective, compliant enrichment of 1,000 Google Maps leads with verified emails and tech‑stack details, reducing reliance on expensive SaaS credits.

Workflow

• Discover local businesses or crawl a list of company domains.
• Perform live Google DNS‑over‑HTTPS MX verification and fingerprint mail gateway.
• Inspect website HTML for CMS, ad pixels, and booking/CRM widgets.
• Enforce UK/EU GDPR safe‑by‑design filtering of personal emails.
• Return enriched data via Clay HTTP API column or n8n workflow.

Evidence

Most B2B teams overpay $50–$150 per 1,000 leads in SaaS enrichment credits—or worse, pay $49/month for legacy scrapers that dump unverified regex emails like [email protected].

Source

Discovers local businesses or crawls any list of company domains (apify.com, stripe.com, etc.).

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Performs live Google DNS-over-HTTPS (https://dns.google/resolve) MX verification and fingerprints the mail gateway (Google Workspace, Microsoft 365, Proofpoint, Mimecast).

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Enforces UK/EU GDPR Safe-by-Design (gdprSafeMode: "auto"), automatically filtering personal emails on .uk/.eu domains so you only message compliant corporate role accounts (info@, sales@, enquiries@).

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