SpamFixer Email Deliverability Check for Gemini CLI

com.spamfixer/email-deliverability-check

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

client:Gemini CLI transport:streamable-http tools:1

Install SpamFixer Email Deliverability Check in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

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

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs