Skip to main content

​
Find Work Email

Deepline’s email waterfall tries up to 6 providers in cost order — Dropleads (0.3 credits), Hunter (0.3 credits), LeadMagic, Deepline Native, Crustdata, and PeopleDataLabs — and stops at the first valid hit. Typical cost: 0.3-0.4 credits per lookup. Just describe what you need in natural language — Deepline picks the right waterfall variant automatically. Waterfall enrichment gets 20-40% higher email coverage than any single provider (Instantly). B2B data decays at roughly 22.5% per year (HubSpot via Cognism), so a single-provider lookup goes stale fast. The 6-provider waterfall cross-references multiple sources in real time to compensate.

​
How do I find work emails with Claude Code?

Tell Claude Code what you need in plain language. Deepline picks the right waterfall variant based on your data — no need to specify providers or templates.
“Find work emails for everyone in leads.csv”
“I have LinkedIn URLs and names — find their work emails”
“Find the work email for Sarah Chen, VP Engineering at Stripe”
With Codex: 
codex "Find work emails for everyone in leads.csv using waterfall enrichment"

​
What does the email waterfall do step by step?

The waterfall reads your input columns, picks a provider chain, and tries each provider cheapest-first until it finds a verified email. You only pay for providers that ran. Most lookups resolve on the first or second provider (0.3-0.4 credits).
1

Analyze your input columns

Deepline inspects your CSV headers or payload fields to determine which waterfall variant to use.
2

Route to the right waterfall

Based on available data, Deepline selects the optimal provider chain (see provider details below).
3

Try providers in cost order

The cheapest provider runs first. Each result is validated before accepting.
4

Return verified email

The first valid, non-catch-all email is returned. You only pay for providers that ran.

​
Which providers does the waterfall try and in what order?

There are 4 waterfall variants. Deepline picks one based on what data you provide:
You haveWaterfallProviders
Name + company + domainname_and_company_to_email_waterfallDropleads, Hunter, LeadMagic, Deepline Native, Crustdata, PeopleDataLabs
LinkedIn URL + nameperson_linkedin_to_email_waterfallLinkedIn-optimized chain
LinkedIn URL onlyperson_linkedin_only_to_email_waterfallLinkedIn-only chain
Name + domain (no company)cost_aware_first_name_and_domain_to_email_waterfallFree pattern validation first, then paid providers
Typical cost: 0.3-0.4 credits (first provider hit). 
# Single lookup
deepline tools execute name_and_company_to_email_waterfall \
  --payload '{"first_name":"Sarah","last_name":"Chen","company_name":"Stripe","domain":"stripe.com"}'

# Bulk CSV
deepline enrich --input leads.csv --output enriched.csv \
  --with '{"alias":"email","tool":"name_and_company_to_email_waterfall","payload":{"first_name":"{{first_name}}","last_name":"{{last_name}}","company_name":"{{company_name}}","domain":"{{domain}}"}}'
If you have name + domain but no company name, Deepline uses the cost-aware waterfall that tries free email patterns first. This can save 70% on lookups where the pattern matches.
Related tasks: Email Waterfall with Validation | Find LinkedIn Profile | Find Decision Makers

​
Frequently Asked Questions

​
How much does it cost to find a work email with Deepline?

Most lookups resolve on the first provider at 0.3 credits ($0.024). The cost-aware variant tries free email patterns first and can resolve for as little as 0.1 credits. Worst case across all 6 providers: 7.2 credits, but that rarely happens.

​
Can I find work emails in bulk from a CSV?

Yes. Tell Claude Code “find work emails for leads.csv” and Deepline reads your column headers, picks the right waterfall variant, and enriches every row. You can also use the deepline enrich CLI command directly. Always pilot with 3-5 rows first to verify the waterfall is routing correctly.

​
What data do I need to find a work email?

At minimum, you need a name and domain (e.g., “Sarah Chen” + “stripe.com”). For the best hit rates, provide name + company name + domain. If you have a LinkedIn URL, Deepline uses a LinkedIn-optimized chain. The more identifiers you provide, the higher the match rate.

​
Why use Deepline for finding work emails?

Ask for emails in plain English from your IDE or terminal and the waterfall runs automatically. Deepline selects the right provider chain based on your input, tries providers cheapest-first, and chains multiple sources without any UI configuration. You stay in your coding workflow instead of switching to a separate enrichment tool.

​
How accurate is the work email waterfall?

Deepline validates every email before returning it, filtering out catch-all addresses and invalid syntax. Multiple providers cross-check each other, which gets 20-40% higher coverage than a single provider (Instantly). For deliverability verification, use the Email Waterfall with Validation task to chain a ZeroBounce validation step for bounce-risk scoring.