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mcp/harbor
Gemini CLI

Mailbox for Gemini CLI

io.github.psyb0t/mailbox

Self-hosted MCP server for unified IMAP/SMTP mailbox access: read, list, and send email.

client:Gemini CLI transport:stdio runtime:oci

Install Mailbox in Gemini CLI

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

{
  "mcpServers": {
    "mailbox": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/psyb0t/mailbox:v0.4.15"
      ]
    }
  }
}

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

Mailbox in other clients

Mailbox MCP server