Deliverability Doctor vs Scan.mx Email Diagnostics

In-depth architectural comparison of the Deliverability Doctor and Scan.mx Email Diagnostics 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 Deliverability Doctor when:

• You need dedicated capabilities in the Communication domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Deliverability Doctor Details

S

Choose Scan.mx Email Diagnostics when:

• You need dedicated capabilities in the Communication domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Scan.mx Email Diagnostics Details

Feature & Specification Comparison

Specification	Deliverability Doctor Communication	S Scan.mx Email Diagnostics Communication
Summary	Check if a domain can be email-spoofed: SPF, DMARC, DKIM, MX graded from public DNS. Authless.	Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.
Category & Scope	Communication	Communication

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": {
    "deliverability-doctor": {
      "command": "npx",
      "args": [
        "-y",
        "deliverability-doctor"
      ]
    }
  }
}

{
  "mcpServers": {
    "scan-mx-email-diagnostics": {
      "command": "npx",
      "args": [
        "-y",
        "scan-mx-email-diagnostics"
      ]
    }
  }
}

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