MCP Servers

MailMCP

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

README

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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