inboxmcp

Hosted in Germany (EU) · GDPR-compliant

Let AI manage your inbox.

Connect your AI assistant to your mailbox. It sorts, finds, files and drafts replies for you, all in plain language. Two minutes to set up, hosted in Germany. Your mail stays with your provider.

  • Hosted in Germany (EU)
  • GDPR & DPA-ready
  • AES-256 at rest, OAuth 2.1 in transit
inboxmcp · Claude live
You
"Sort yesterday's invoices into the Accounting folder and draft a reply to Anna."
Claude
Sure, let me handle that.
  • search_mails 3 matches
  • move_mails ✓ done
  • draft_mail ✓ saved to Drafts
All done.

Works with every IMAP mail provider

mailbox.org STRATO IONOS Posteo Proton Mail Fastmail Plesk Dovecot + any IMAP server

How it works

Three steps, two minutes.

No plugins to install. No mails copied off your mailbox. Your AI assistant talks to your existing IMAP server through us.

  1. 1

    Connect your mailbox

    Drop in your IMAP/SMTP credentials. They're encrypted with AES-256-GCM the moment they hit our server and never written to logs.

  2. 2

    Add to your AI client

    One URL into Claude (or any MCP client). OAuth 2.1 with PKCE + Dynamic Client Registration handles the rest. No client IDs to copy around.

  3. 3

    Talk to your inbox

    "Sort yesterday's invoices into the Accounting folder." "Draft a reply to Anna." The AI does it; you keep the audit trail.

Was deine KI machen kann

Sag was du brauchst, und die KI erledigt es.

Hier siehst du jede Aktion, die inboxmcp ermöglicht. Alles andere kann die KI nicht, und jede einzelne Aktion landet in deinem Audit-Log.

Lesen

Postfach durchsuchen

„Was kam letzte Woche so von Anna rein?"

  • Alle verbundenen Postfächer auf einen Blick
  • Den kompletten Ordnerbaum eines Postfachs durchstöbern
  • Nachrichten finden nach Absender, Betreff, Datum oder Markierung
  • Eine Nachricht öffnen, inklusive Anhängen
Schreiben

Aufräumen & antworten

„Sortier die letzten Rechnungen in den Buchhaltungs-Ordner und entwirf eine Antwort an Anna."

  • Neue Ordner anlegen
  • Nachrichten in einen anderen Ordner verschieben
  • Antworten, Weiterleitungen oder neue Mails entwerfen, landen in deinem Entwürfe-Ordner zur Freigabe

Demnächst (mit Bestätigung)

  • — Mails versenden
  • — Als gelesen, ungelesen oder markiert kennzeichnen
  • — In den Papierkorb verschieben

Für die technisch Interessierten: jeder Punkt entspricht einem MCP-Tool. Die genauen Namen findest du in deinem Audit-Log.

Integrations

Works with the AI assistants you already use.

inboxmcp speaks the Model Context Protocol (MCP), so any spec-compliant client can use it. Add it once on our side, then point any client at the same URL.

  • Claude

    Claude

    Anthropic

    Live

    Available as a Custom Connector in Claude Web and Desktop. We're working on getting inboxmcp listed in the official Claude connector catalogue too.

  • ChatGPT

    ChatGPT

    OpenAI

    Coming soon

    Coming as an app in the ChatGPT app directory. Same account, same mailboxes. Just a different place to ask.

  • Gemini

    Gemini

    Google

    Evaluating

    We'll add Gemini as soon as Google supports the same connector format Claude and ChatGPT use.

  • Microsoft Copilot

    Microsoft Copilot

    Microsoft

    Evaluating

    We're following Microsoft's connector roadmap. Copilot will be added once it's ready on their side.

  • Other AI tools

    MCP-compatible

    Live

    If your AI tool speaks the open MCP standard (Cursor, Continue and others do), inboxmcp works out of the box: same URL, same login.

  • Your AI not listed?

    Drop us a line and we'll see what we can do.

    hi@inboxmcp.io →

Our promise

Your mailbox stays where it is. We just make it usable for your AI.

Every tool call opens your IMAP folder on demand, does the work, and disconnects. No mirror on our side. No cache. No second copy of your inbox living somewhere it should not.

  • Credentials encrypted at rest

    AES-256-GCM with envelope keys, decrypted only in memory for the moment a tool call needs them.

  • Hosted in Frankfurt

    Our infrastructure, EU-only data plane, signed DPA on the Business plan.

  • Audit log on every action

    Business

    Which mailbox, which tool, which AI client. Exportable on Business for compliance review.

What you get

Built for people who'd rather spend less time in email chaos.

🇩🇪

Hosted in Germany

All data stays in German data centres. GDPR-compliant, Auftragsverarbeitungs-Vertrag (AVV) on request.

🔐

Credentials encrypted at rest

IMAP credentials sealed with AES-256-GCM before they touch disk. Decrypted only in-memory for the moment a tool call needs them.

📬

Works with any provider

Standard IMAP + SMTP. Your Plesk mailbox, mailbox.org, STRATO, Proton Mail Bridge, IONOS, Posteo, your own Dovecot. Anything that speaks the protocol works.

🚫

We don't store your mail

Tool calls go straight to your IMAP server. Mail bodies, attachments, and headers stay on your mailbox. No caching, no index, no persistence.

🔑

Passkey sign-in

No passwords. Passkey-first authentication via Hanko; sign in with your fingerprint or a security key.

Business
📊

Full audit log

Every tool call is logged: which mailbox, which tool, which client. Exportable on the Business plan for compliance.

Pricing

Per mailbox. No cap. Switch anytime.

Pay only for the mailboxes you actually connect. Yearly plans get two months free. All prices include VAT.

Free

Try it out, no strings attached.

€0

For your first mailbox

Get started
  • 1 mailbox
  • Read-only access
  • 500 tool calls / month

Most popular

Premium

Daily inbox automation.

€1,49

per mailbox / month

Start Premium
  • Unlimited mailboxes
  • Read & write
  • Unlimited tool calls
  • Email support

Business

For compliance-conscious users.

€2,99

per mailbox / month

Start Business
  • Unlimited mailboxes
  • All Premium features
  • Signed DPA / AVV included
  • Exportable audit log
  • Priority support

FAQ

Frequently asked questions

What is MCP and how does it work? +

MCP (Model Context Protocol) is the open standard AI assistants use to talk to external tools. inboxmcp is a hosted MCP server: you add one URL to your AI client, log in once, and it can read and manage your mailbox via natural language, securely, on your own server.

Which email providers are supported? +

Any provider that speaks IMAP and SMTP, which is almost all of them. Plesk, mailbox.org, STRATO, IONOS, Posteo, Proton Mail (via Bridge), Fastmail, Gmail (with app password), your own mail server. We do not require provider-specific OAuth.

Where is my data stored? +

Your mail stays on your own mailbox. We never copy it. The only data we store is what's strictly required to operate the service: your encrypted mailbox credentials, your audit log, and the OAuth tokens issued to your AI client. All of it lives in our own infrastructure in Frankfurt.

How safe are my IMAP passwords? +

Credentials are encrypted with AES-256-GCM before they're stored. We use envelope encryption with key material managed in a dedicated secrets store, and we strictly separate responsibilities across the platform: the service that handles your account and management actions can encrypt new credentials but cannot decrypt existing ones. Only the isolated component that actually performs your mailbox call holds the decryption key, and only in memory, for the duration of that single call.

What's the difference between Free and Premium? +

Free covers read-only access on a single mailbox. Premium (€1.49/mailbox/month or €14.99/mailbox/year) unlocks the write tools (drafts, moves, sends, flagging, deletion) with no cap on mailbox count. Business (€2.99/mailbox/month or €29.99/mailbox/year) adds a signed DPA and an exportable audit log.

Can I cancel any time? +

Yes. No minimum term. Delete your account from the portal. Credentials, audit logs and tokens are wiped immediately.

Do you offer a data processing agreement (DPA)? +

Yes. On the Business plan we provide a signed DPA / Auftragsverarbeitungs-Vertrag on request. Required if you're handling third-party email under GDPR.

What about the AI client that connects to inboxmcp? +

inboxmcp itself doesn't keep your mail. But the AI client you connect to it (Claude, ChatGPT, etc.) reads message content to do its job, and what happens to that data afterwards is governed by that vendor's terms, not ours. If your messages contain personal data of third parties, you remain the data controller under GDPR for what the AI vendor does with it. We strongly recommend talking to a data-protection specialist about your specific setup before connecting business mailboxes — what's compliant depends on the AI vendor, the data categories involved, and your own purpose of processing.

Can I get a refund after I subscribe? +

No. inboxmcp is a digital service that we begin providing immediately after payment, so the purchase is binding and no refund is possible once execution starts. You check a box at checkout that makes this explicit. You can cancel at any time to stop further billing, but the current billing period stays paid.

What about the 14-day right of withdrawal? +

Under German consumer law (§356 (5) BGB) you have a 14-day right of withdrawal for digital services — but only as long as performance has not yet been fully provided. At checkout you expressly request that we begin providing the service immediately and acknowledge that doing so waives the right of withdrawal once the service has been fully delivered. Both consents are an explicit checkbox you tick before paying.

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