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SuperMailbox

Search connected email, read and manage messages, draft and send, and manage rules for new mail.

likely compatible

OAuth with discovery metadata and Dynamic Client Registration; use OAuth 2.0 → Dynamic discovery.

Rule R2c · what this means · Not tested in Copilot Studio.

Registry nameio.github.hardtab/supermailbox
Endpoint used for verdicthttps://api.supermailbox.app/mcp
Transportsstreamable-http
Auth (Copilot Studio setting)OAuth 2.0 – Dynamic discovery
Last endpoint check2026-10-20T18:14:45Z · HTTP 401
Websitehttps://supermailbox.app
Version0.1.0
Registry updated2026-10-16
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Is this wrong or out of date? Email us. Data built 2026-10-20.