ninja.mailtester/email-verification

up checked 2026-11-11T04:39:20.515Z

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Publisher-provided title

MailTester Ninja

Publisher-provided description

Verify email addresses live against their mail server and find work emails. Nothing stored.

Summary by lookupd

Lets an agent verify in real time whether an email address exists and can receive mail, and find a contact's work email from name and…

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http email-verification https://mcp.mailtester.ninja/mcp

Codex, remote (streamable-http)

codex mcp add email-verification --url https://mcp.mailtester.ninja/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "email-verification": {
      "url": "https://mcp.mailtester.ninja/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (2 tools)

Publisher-provided text

• verify_email Check in real time whether an email address exists and can receive mail, by asking the recipient's mail server (no message is sent). Returns code "ok" (valid),
• find_email Find the work email address of a business contact, for professional outreach, from their first name, last name and company domain. The company's common address

Details

• Version: 1.0.1
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 547 ms
• First indexed: 2026-11-01T10:07:49.440Z
• Last seen in registry: 2026-11-01T10:07:49.452Z
• Website: https://mailtester.ninja/integrations/mcp/

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