Submit Map vs MCP Mailboxvalidator

In-depth architectural comparison of the Submit Map and MCP Mailboxvalidator MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Submit Map when:

• You need dedicated capabilities in the Marketing domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: API Key required (Free / Open Source).
• Primary tools included: search_platforms, get_platform, qualify_project.

Explore Submit Map Details

Choose MCP Mailboxvalidator when:

• You need dedicated capabilities in the Marketing domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Freemium).
• You have access to required keys: MAILBOXVALIDATOR_API_KEY.
• Primary tools included: Full email validation, Disposable-email detection, Free-email-provider detection.

Explore MCP Mailboxvalidator Details

Feature & Specification Comparison

Specification	Submit Map Marketing	MCP Mailboxvalidator MailboxValidator Marketing
Summary	A directory of product launch platforms: where your product qualifies and how each form is filled.	Validates email addresses to reduce email bounces during marketing campaigns.
Category & Scope	Marketing	Marketing

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "directory-3": {
      "url": "https://submitmap.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "mailboxvalidator-mcp-mailboxvalidator": {
      "command": "npx",
      "args": [
        "-y",
        "mailboxvalidator-mcp-mailboxvalidator"
      ],
      "env": {
        "MAILBOXVALIDATOR_API_KEY": "YOUR_MAILBOXVALIDATOR_API_KEY_HERE"
      }
    }
  }
}

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