Email Deliverability Checker for Gemini CLI

io.github.kryptoscan/email-deliverability-mcp

Check SPF, DKIM, DMARC, blocklists, reverse DNS and email headers against Gmail/Yahoo sender rules.

client:Gemini CLI transport:streamable-http tools:3

Install Email Deliverability Checker in Gemini CLI

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

{
  "mcpServers": {
    "email-deliverability-mcp": {
      "httpUrl": "https://api.ownmailserver.com/tools/mcp"
    }
  }
}

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