Buy the quoted order: charges the workspace's card on file for the quote's dueNowCents, then registers the domains and creates the mailboxes. They arrive connected (no sign-in, connectedVia: managed) and warming unless warmup.enabled is false, usually within hours; follow the order on GET /mailbox-orders/{id} or the mailbox_order.completed / mailbox_order.failed webhooks. Send the quoteId; the order fields are optional and, when sent, must be exactly what was quoted (409, code: quote-mismatch). Buying the same quote again returns the same order with no second charge, and an Idempotency-Key replays the first answer to a retry. 402 with code: no-payment-method or payment-failed when the card cannot be charged; 409 with code: quote-expired, price-changed or domain-unavailable when the quote no longer holds (quote again); 409 with code: payment-pending when the charge is still being confirmed (the order appears in GET /mailbox-orders within minutes if it went through, so do not buy again); 403 with code: not-allowed unless the key's creator may manage billing (owner or admin of the paying workspace). Quoting needs the same right. For existing domains: 409 with code: mailbox-unavailable, domain-full or domain-admin-cancelled, and 404 with code: domain-not-owned.

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Response Body