Cold Email Pipeline (n8n)

673 prospects scored in under 4 min

Most cold email fails for two reasons: it goes to a bought list with bad addresses, and it says nothing specific about the business it's sent to. This pipeline fixes both. It enriches every prospect with their Google Maps data, crawls their website to find problems you can actually point to, writes that evidence in plain English, verifies every address, and loads only the qualified, verified prospects into Instantly across warmed-up mailboxes. Each first email can open with something true about that business.

n8nGoogle Maps dataWebsite crawlingMillionVerifierInstantlyGoogle Sheets
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Feature Highlights

Separate workflows for enrichment, scoring, verification and sending

  • Free and cheap checks run first, so paid lookups are only spent on prospects worth contacting
  • Each stage reads one status and writes the next, so any stage can be re-run after a fix without re-buying data
  • A failure stops one stage instead of silently corrupting the whole list
  • In the first cohort, 673 businesses were crawled and scored in under four minutes

Stack

  • n8n: Runs each stage as its own workflow, with code steps for crawling, scoring and assignment.
  • Outscraper (Google Maps): Business listings, reviews, ratings and categories.
  • MillionVerifier: Email verification before any address is queued.
  • Instantly: Campaigns, sending and mailbox warmup.
  • Google Sheets: System of record for every prospect's stage, evidence and result.
  • Postgres (ready to scale): Schema designed for when the list outgrows a spreadsheet.

Use Cases

  • Agencies prospecting local service businesses such as law firms, clinics or contractors
  • B2B teams that want personalised cold email without writing every line by hand
  • Anyone starting cold outreach on new domains who can't afford to burn them

How It Works

  1. Start with a list of target businesses in a sheet.
  2. Enrich each one with its Google Maps reviews, rating and category.
  3. Crawl its website, score the problems found and write the evidence.
  4. Verify the email address and drop anything risky.
  5. Assign each qualified business to a sender and push it into that mailbox's Instantly campaign.

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Let's Connect

Want cold email that says something real?

I build prospecting pipelines that research every business before the first email, and protect your domains while doing it.

Dhruba Datta

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