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Works with

Claude CodeClaude DesktopCursorVS CodeClineCodex CLIOpenClaw+ any MCP client

Install to Claude Code

This server doesn't publish a one-line install command. Follow the setup in the source repository.

Summary

Enables reading, sending, and managing emails via IMAP/SMTP through natural language, including listing folders, searching, moving emails, and sending attachments.

README.md

MailMCP

MCP-Server für den Zugriff auf ein E-Mail-Postfach via IMAP/SMTP. Geschrieben in Node.js / TypeScript. Läuft als stdio-Prozess direkt auf dem Host.

Features

  • Alle Ordner des Postfachs auflisten
  • E-Mails in einem beliebigen Ordner auflisten (neuste zuerst)
  • Vollständigen Inhalt einer E-Mail lesen (Text, HTML, Anhänge)
  • E-Mails nach Betreff, Absender oder Body durchsuchen
  • E-Mail in anderen Ordner verschieben
  • E-Mails senden (inkl. CC, BCC, HTML, Anhänge als Base64)
  • Lokale Datei direkt als E-Mail-Anhang versenden
  • Konfigurierbarer INBOX-Ordner

Verfügbare Tools

| Tool | Beschreibung | |---|---| | list_folders | Alle IMAP-Ordner auflisten | | list_emails | E-Mails in einem Ordner auflisten (mit Filter: ungelesen) | | get_email | Vollständige E-Mail per UID lesen | | search_emails | E-Mails nach Stichwort durchsuchen | | move_email | E-Mail in anderen Ordner verschieben | | send_email | E-Mail senden (To, Subject, Text, optional CC/BCC/HTML/Anhänge als Base64) | | send_local_file | Lokale Datei vom Host-Dateisystem als Anhang versenden | | get_inbox_config | Aktuelle Serverkonfiguration anzeigen |

Setup

1. Abhängigkeiten installieren & bauen

npm install
npm run build

2. Konfiguration

cp .env.example .env

Werte in .env anpassen:

| Variable | Beschreibung | Standard | |---|---|---| | MAIL_HOST | IMAP-Server | – | | MAIL_PORT | IMAP-Port | 993 | | MAIL_SSL | IMAP SSL | true | | MAIL_USER | E-Mail-Adresse | – | | MAIL_PASSWORD | Passwort | – | | MAIL_INBOX | Standard-Posteingang | INBOX | | MAIL_MAX_EMAILS | Max. E-Mails pro Abfrage | 50 | | SMTP_HOST | SMTP-Server | – | | SMTP_PORT | SMTP-Port | 587 | | SMTP_SSL | SMTP SSL (true = Port 465) | false | | SMTP_FROM_NAME | Absendername | – |

Die .env-Datei wird automatisch geladen — es sind keine Umgebungsvariablen im MCP-Client nötig.

MCP-Integration (mcporter / Claude / VS Code)

{
  "mcpServers": {
    "mailmcp": {
      "command": "node /pfad/zu/mailmcp/dist/server.js"
    }
  }
}

Dateistruktur

mailmcp/
├── src/
│   ├── server.ts        # MCP Server & Tool-Definitionen
│   ├── imap-client.ts   # IMAP-Verbindung & E-Mail-Parsing
│   ├── smtp-client.ts   # SMTP-Versand via nodemailer
│   └── config.ts        # Konfiguration via .env
├── package.json
├── tsconfig.json
├── .env                 # Credentials (nicht einchecken!)
├── .env.example
└── .gitignore

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