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Public Beta (v0.2)

inboxmcp
inboxmcp
Release Team

inboxmcp is in public beta as of v0.2.0. The release marks the move into production: real customer mailboxes, Stripe billing, audit log, GDPR-compliant hosting on our own infrastructure in German data centres.

Feature set​

  • MCP endpoint at https://mcp.inboxmcp.io/mcp with OAuth 2.1 and Dynamic Client Registration (RFC 7591). Compatible with Claude Web and Desktop, plus any MCP-conformant client.
  • Mailbox connection for IMAP/SMTP (every RFC-3501 mail server — mailbox.org, IONOS, STRATO, Posteo and others) and Microsoft 365 via OAuth.
  • Read tools: list_mailboxes, list_folders, search_mails, read_mail, read_mail_chunk, get_attachment (attachment URLs are HMAC-signed and short-lived).
  • Write tools (Premium / Business): draft_mail, edit_draft, create_folder, move_mails. More coming.
  • Stripe billing: Free (1 mailbox, read-only), Premium (€2.99/mailbox/month), Business (€4.99/mailbox/month) with DPA, audit-log access and tax-compliant invoice.
  • Audit log: every tool call is recorded with timestamp, tool, mailbox, client and result.

Security​

Credentials — IMAP/SMTP passwords and OAuth refresh tokens — are encrypted with an asymmetric envelope scheme before they're stored. Recovery from outside is technically impossible. Mail content is never persisted. More under Security & privacy.

Not yet included​

  • Write tools send_mail, flag_mail, delete_mail
  • Audit log export (CSV / JSON)

Status on the roadmap. Feedback at support@inboxmcp.io.