SpamFixer Email Deliverability Check MCP Server: Install & Setup

Install SpamFixer Email Deliverability Check in Claude Code

Claude Code

claude mcp add --transport http spamfixer-email-deliverability-check https://spamfixer.com/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "spamfixer-email-deliverability-check": {
      "url": "https://spamfixer.com/mcp"
    }
  }
}

Why do a domain's emails go to spam? Checks SPF, DKIM, DMARC, MX and blocklists. Free, no login.

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Remote. Hosted by the provider. You connect with a URL, nothing to install.

Run: claude mcp add --transport http spamfixer-email-deliverability-check https://spamfixer.com/mcp

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