Teardown No. 06 · Outbound

How Alejandro Arce runs B2B cold email with Claude Code

Alejandro Arce builds cold email systems in Claude Code. They enrich 200 to 500 leads, write one personalized email per row from real trigger signals, and run a five-touch sequence with conditional follow-ups and a bounce-rate kill switch.

Alejandro Arce · @alejandroarcegVerified Oct 13, 2026Markdown copy

The problem

He names the two things that kill campaigns: poor personalization and inconsistent follow-up.

The blueprint

  1. Define the ICP: size, industry, location, tech-stack signals, titles.
  2. Scrape and enrich: Claude Code pulls prospects and adds recent news, hiring posts and tech adoption signals, then validates emails with a catch-all checker. He says this produces a 200 to 500 row CSV in about 90 minutes.
  3. Personalize: Claude Code fills a templated structure from the enrichment data, with 50+ good and bad examples in context. Anything that reads as forced gets flagged and rewritten.
  4. Conditional follow-ups, defined in YAML:
    • No open in 3 days: a new subject line.
    • Opened but no reply in 5 days: a value-add email.
    • “Not interested”: removed from the sequence.
    • Interested: a booking link.
  5. Deliverability guardrails:
    • A dedicated domain.
    • Warmup from 10 emails a day over 2 to 3 weeks.
    • SPF, DKIM and DMARC records.
    • Automatic pause if bounces exceed 3%.
  6. CRM handoff: replies create a lead record with the campaign source. If someone doesn’t book within 48 hours, they get a nudge.
  7. His own rule: get to a 10%+ reply rate manually before automating, and let a human take over once a prospect engages.

Stated results

He describes one campaign for a Vancouver agency: 450 prospects, a 5-email sequence over 14 days, 62 replies (13.8%), 18 booked calls and 4 closed deals within 60 days. He estimates about 6 hours of setup and 30 minutes a week after that. He also says his systems “consistently book 15–25 qualified meetings per month for clients.” These are self-reported client results: Unverified · independently.

Caveats

  • X: @alejandroarceg (verified 2026-10-13: linked from alejandroarce.com).
  • Scraping LinkedIn may conflict with LinkedIn’s terms. Present this as his method, not an endorsement.
  • He runs this for clients, not for his own product.

Sources

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