Corporate Email Finder & Verifier

B2B email discovery and verification from a person name and company domain—supporting both single-lead lookup and bulk lead lists (up to 1,000 leads per run). Syntax, DNS MX, disposable-domain, and role-based signals are checked in the same run with per-domain signal caching for fast, low-memory execution (256 MB). Results are heuristic signals for controlled B2B lead-validation workflows—not delivery guarantees.

Modes

1. Single Finder + Verifier

Provide fullName and domain. The Actor generates up to 10 corporate email patterns (default: 5), verifies each, and saves the highest-scoring candidate to the Dataset.

{
  "fullName": "Satya Nadella",
  "domain": "microsoft.com",
  "maxCandidates": 5
}

2. Bulk Finder + Verifier (leads — up to 1,000 leads per run)

Provide leads as an array of { "fullName", "domain", "companyName" } objects (or "Full Name, domain.com" strings) to resolve up to 1,000 B2B contacts in a single run. Domain MX and SMTP signals are cached per domain so multiple contacts at the same company resolve instantaneously.

{
  "leads": [
    { "fullName": "Satya Nadella", "domain": "microsoft.com" },
    { "fullName": "Taro Yamada", "domain": "example.co.jp" }
  ],
  "maxCandidates": 5
}

3. Verifier only (emails — up to 1,000 emails per run)

Provide emails to verify one address per Dataset record.

Companion B2B Lead, Email & Domain Intelligence Suite:

• Extract company name, tech stack, social links & role emails from websites: B2B Website Enricher (invaluable_rondeau/b2b-website-enricher)
• Audit corporate domain SPF / DMARC / DKIM / MX provider posture: B2B Domain Email Security Auditor (invaluable_rondeau/b2b-domain-email-security-auditor)
• Pre-send email list hygiene gate (allow / review / suppress): B2B Email Deliverability Risk Gate (invaluable_rondeau/b2b-email-deliverability-risk-gate)
• High-volume MX verification up to 50,000 emails at $0.001/email: Bulk Email Verifier (invaluable_rondeau/email-verifier-bulk)

{
  "emails": [
    "taro.yamada@example.co.jp",
    "not-an-email"
  ]
}

domain is preferred. If it is absent, a domain-like value embedded in companyName can be used. The Actor does not query a company directory or LinkedIn.

Output example

{
  "inputName": "satya nadella",
  "inputDomain": "microsoft.com",
  "email": "satya.nadella@microsoft.com",
  "patternUsed": "first.last",
  "isValidSyntax": true,
  "hasMx": true,
  "isDisposable": false,
  "isRoleBased": false,
  "score": 85,
  "status": "risky",
  "checkedAt": "2026-10-20T00:00:00.000Z"
}

valid means the lightweight checks passed. risky means the address has a usable syntax/MX signal but also has an uncertainty or risk flag. invalid means syntax or MX failed. not_found means no usable candidate could be resolved.

Billing

The PPE event is email-resolved ($0.03 per resolved valid or risky email).

Only a result with status valid or risky is billable, and charging is attempted after that result is saved to Dataset. not_found, invalid, and failed requests are not charged. The run checks chargedCount and stops safely when the buyer's charge limit is reached.

Dataset contains one record per Finder request or one record per supplied email. Therefore the billing reconciliation is billableSavedCount == chargedCount; total Dataset rows also include non-billable invalid and not_found records.

Limits and safe use

• Candidate generation supports up to 10 corporate patterns (first.last, firstlast, f.last, first_last, first, flast, first-last, last.first, first.l, and last).
• Names are normalized with Unicode compatibility normalization, whitespace collapsing, and lowercasing. Japanese and English names use simple token splitting; transliteration is not attempted.
• MX and a short SMTP TCP connection are signals only (cached per domain within a run). The Actor does not send mail, perform RCPT TO, or guarantee delivery, mailbox ownership, or consent.
• Disposable and role-based lists are small built-in baselines and are not complete.
• Do not use the output for unsolicited bulk outreach. Test a small set first.
• No paid enrichment API, LinkedIn login, cookie, CRM integration, dashboard, or AI copy generation is used.

How to use

1. Select Try for free in Apify (pre-filled with a working sample).
2. Run a single Finder input, a bulk leads array, or emails list.
3. Inspect the Dataset and score/status before using any result.
4. Increase volume only after a small test is useful and the billing preview is understood.

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AI Agent (MCP) & Automation Integration (Claude, Cursor, n8n, Clay, Make)

This Actor is Agentic-Payment & MCP Ready (LIMITED_PERMISSIONS, 256 MB fast cold-start, synchronous JSON output).

1. Claude Desktop / Cursor / Windsurf MCP Configuration

Add to claude_desktop_config.json or .cursor/mcp.json:

{
  "mcpServers": {
    "apify-b2b-quant": {
      "command": "npx",
      "args": [
        "-y",
        "@apify/actors-mcp-server",
        "--actors",
        "invaluable_rondeau/corporate-email-finder-verifier"
      ],
      "env": {
        "APIFY_TOKEN": "YOUR_APIFY_TOKEN"
      }
    }
  }
}

2. Synchronous HTTP Webhook (n8n, Make, Clay, Zapier, cURL)

Call the synchronous dataset endpoint to get clean JSON items in a single HTTP request:

curl -X POST "https://api.apify.com/v2/acts/invaluable_rondeau~corporate-email-finder-verifier/run-sync-get-dataset-items?token=$APIFY_TOKEN&memory=256&clean=true" \
  -H "Content-Type: application/json" \
  -d '{}'

3. Search Keywords & Supported Workflows

Compatible with Model Context Protocol (MCP), Clay.com HTTP API enrichment, n8n HTTP Request node, Make.com, Zapier, LangChain, and OpenAI Agent SDK. Built as a high-margin, pay-per-event alternative to rigid monthly SaaS subscriptions (Hunter.io, ZeroBounce, NeverBounce, Apollo, Clearbit, Dropcontact alternative for B2B email finder and bulk email verification).

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Related B2B, Quant & API Security Suite (invaluable_rondeau)

Tool / Channel	Best For	Link
Zero-Config MCP Server (9 Tools)	Claude Desktop, Cursor, Windsurf & Cline (works with zero API keys!)	npx -y github:rotenkus-dot/b2b-lead-quant-mcp
Quant & B2B Risk Gate API (RapidAPI)	Serverless Edge API for Monte Carlo Overfitting, Kelly Sizing, RDAP & SPF/DMARC	Subscribe on RapidAPI
OpenAPI Breaking-Change Gate (RapidAPI / Action)	CI/CD Pull Request OpenAPI 3.0/3.1 contract diff & PASS/FAIL release gate	RapidAPI / GitHub Action
Corporate Email Finder & MX Verifier	Resolve verified B2B prospect emails from name + company domain	Apify Store
B2B Website Enricher & Tech Stack Profiler	Extract 20+ tech stack signals, role emails & social links from company URLs	Apify Store
B2B Email Deliverability Risk Gate	Score email lists (0-100) into send / review / suppress before outreach	Apify Store
B2B Domain SPF / DMARC / BIMI Security Auditor	Audit domain email spoofing posture, MTA-STS & TLS-RPT	Apify Store
Domain RDAP Expiry & Registrar Lock Monitor	Track domain registration age, expiry countdown, DNSSEC & transfer locks	Apify Store
SSL / TLS Certificate Expiry & Drift Monitor	Monitor live TLS handshakes, cert expiration & SAN fingerprint drift	Apify Store