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mcp/harbor
Gemini CLI

IMAP mailbox for Gemini CLI

io.github.ni-c/imap-mcp

Read, search and organise any IMAP mailbox, with writes off by default

client:Gemini CLI transport:stdio runtime:npm

Install IMAP mailbox in Gemini CLI

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

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "imap-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@ni-c/imap-mcp"
      ],
      "env": {
        "IMAP_HOST": "<IMAP_HOST>",
        "IMAP_USER": "<IMAP_USER>",
        "IMAP_PASSWORD": "<IMAP_PASSWORD>",
        "IMAP_PORT": "<IMAP_PORT>",
        "IMAP_TLS": "<IMAP_TLS>",
        "IMAP_MAILBOX": "<IMAP_MAILBOX>",
        "IMAP_SEEN_KEYWORD": "<IMAP_SEEN_KEYWORD>",
        "IMAP_READ_ONLY": "<IMAP_READ_ONLY>",
        "IMAP_ALLOW_TOOLS": "<IMAP_ALLOW_TOOLS>",
        "IMAP_DENY_TOOLS": "<IMAP_DENY_TOOLS>",
        "IMAP_DOWNLOAD_DIR": "<IMAP_DOWNLOAD_DIR>",
        "IMAP_INSECURE_TLS": "<IMAP_INSECURE_TLS>",
        "IMAP_DRAFTS_MAILBOX": "<IMAP_DRAFTS_MAILBOX>",
        "IMAP_MAX_MESSAGES": "<IMAP_MAX_MESSAGES>",
        "IMAP_MAX_ATTACHMENT_BYTES": "<IMAP_MAX_ATTACHMENT_BYTES>",
        "IMAP_MAX_DOWNLOAD_BYTES": "<IMAP_MAX_DOWNLOAD_BYTES>",
        "IMAP_MAX_EXTRACT_BYTES": "<IMAP_MAX_EXTRACT_BYTES>",
        "IMAP_ATTACHMENT_TYPES": "<IMAP_ATTACHMENT_TYPES>",
        "IMAP_TRUSTED_AUTHSERV_ID": "<IMAP_TRUSTED_AUTHSERV_ID>"
      }
    }
  }
}

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

IMAP mailbox in other clients

IMAP mailbox MCP server