Hunter.io — Email Finder & Verifier

Cold outreach lives or dies on email quality. A bounce rate above 5% damages your sender reputation. Above 10% gets you blacklisted. Hunter.io solves this at the source.

Hunter.io has indexed 100M+ professional email addresses. Their API gives you three core operations: find all emails at a domain, find a specific person's email by name and company, and verify whether an address is deliverable. This skill wraps all three cleanly.

What this skill covers: → Domain search — find all known emails at a company, plus their email pattern → Email finder — find one person's email from first name, last name, and domain → Email verifier — check deliverability before any email hits your sending tool → Bulk enrichment pipeline — enrich full prospect lists with rate limit handling and caching → Confidence thresholds — only surface emails above your minimum confidence score → Scott integration — native pairing with the Scott prospect research agent

Varconi uses Hunter.io in every outbound run. Scott finds the prospects, Hunter finds the emails, Otto sends them. This skill is the middle of that pipeline.

Free tier covers 25 searches/month — enough to test and qualify your first list. Starter plan ($49/month) covers serious volume.