shipshitdev/email-finder
bundles/sales/skills/email-finder/SKILL.md
This skill should be used when users need to find email addresses associated with a domain. It activates when users ask to scan a domain for emails, find contact emails, discover email addresses, or replace email hunter functionality.
$ install --global
skillsauthnpx skillsauth add shipshitdev/library email-finderInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Jun 4, 2026, 6:41 AM137.3s3 files scanned
SKILL.md
- name:
- email-finder
- description:
- This skill should be used when users need to find email addresses associated with a domain. It activates when users ask to scan a domain for emails, find contact emails, discover email addresses, or replace email hunter functionality.
- version:
- 1.0.0
- tags:
- email, domain, contact-discovery, lead-generation
Email Finder
Overview
Discover email addresses associated with a domain using a hybrid approach: free methods first (web scraping, pattern guessing, WHOIS lookup), then APIs (Hunter.io, Apollo.io, etc.) when keys are available.
When to Use
- Scan a domain to find associated emails
- Find contact emails for a company
- Replace email hunter functionality
- Find email patterns for a domain
- Verify email addresses
- Enrich contact data with discovered emails
Project Context Discovery
Before finding emails:
- Check for existing email discovery tools
- Review available API keys (Hunter.io, Apollo.io)
- Check compliance/privacy requirements
- Look for project-specific
[project]-email-finderskill
Methodology
Free Methods (Primary)
- Web Scraping - Scan
/contact,/about,/teampages for emails - WHOIS Lookup - Query domain registration data
- Pattern Guessing - Generate patterns from names found on site:
API Methods (If Keys Available)
| API | Env Variable | Purpose |
|-----|-------------|---------|
| Hunter.io | HUNTER_API_KEY | Domain search + verification |
| Apollo.io | APOLLO_API_KEY | Contact discovery |
| Snov.io | SNOV_CLIENT_ID/SECRET | Email finder |
| Clearbit | CLEARBIT_API_KEY | Company enrichment |
Email Result Interface
interface EmailResult {
email: string;
source: 'web-scraping' | 'whois' | 'pattern-guessing' | 'hunter' | 'apollo';
confidence?: number;
firstName?: string;
lastName?: string;
position?: string;
verified?: boolean;
}
Best Practices
- Rate limiting: Delay between requests (1s recommended)
- Respect robots.txt: Check before scraping
- Deduplicate: Normalize emails (lowercase, trim)
- Verify: Use MX record checks or API verification
- Filter: Remove noreply@, donotreply@ addresses
Legal & Ethical
- Comply with GDPR/CCPA
- Respect terms of service
- Honor opt-out requests
- Don't spam discovered emails
Integration
Works well with:
leads-researcher- Discover contact emails after researching companiescopywriter- Use found emails for outreach campaigns
For complete implementation code, API examples, verification patterns, and rate limiting utilities, see: references/full-guide.md
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