Mail7 Email Validation MCP Server

by dvlopnet.mail7/email-validationv0.1.1

Mail7 MCP server - email validation, SPF and full domain mail-config checks as tools for AI assistants.

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Maintained58d ago

Install Mail7 Email Validation MCP server

claude mcp add mail7 -e MAIL7_API_KEY='<mail7-api-key>' -- npx -y mail7-mcp

{
  "mcpServers": {
    "mail7": {
      "command": "npx",
      "args": [
        "-y",
        "mail7-mcp"
      ],
      "env": {
        "MAIL7_API_KEY": "<mail7-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "mail7": {
      "command": "npx",
      "args": [
        "-y",
        "mail7-mcp"
      ],
      "env": {
        "MAIL7_API_KEY": "<mail7-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "mail7": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mail7-mcp"
      ],
      "env": {
        "MAIL7_API_KEY": "<mail7-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "mail7": {
      "command": "npx",
      "args": [
        "-y",
        "mail7-mcp"
      ],
      "env": {
        "MAIL7_API_KEY": "<mail7-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
MAIL7_API_KEY	—	yes	Mail7 API key. Optional, but anonymous callers are limited to 5 checks per minute and a 25-address bulk sample. Get one at https://mail7.net/account/
MAIL7_BASE_URL	—	—	Override the API endpoint. Defaults to https://mail7.net/api

Freshness

Maintained — last maintenance signal 58d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-08-11 · 59d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-08-13 · 58d ago · official registry · v0.1.1

FAQ

›How do I install the Mail7 Email Validation MCP server in Claude Code?

Run: claude mcp add mail7 -e MAIL7_API_KEY='<mail7-api-key>' -- npx -y mail7-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Mail7 Email Validation require an API key?

Yes. It expects MAIL7_API_KEY, of which 1 is a secret.

›Can I use Mail7 Email Validation as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Mail7 Email Validation in the official MCP registry?

Yes, as net.mail7/email-validation.