Rename inbox senders
Keeps the domain; regenerates mailbox names from new personas.
Only first_name and last_name change mailbox identities.
Authorizations
Partner API key (pk_live_… or pk_test_…).
Headers
Recommended for safe swap retries. Reuse the same key and request body after a timeout or server error. The original creation result is replayed, even after the swap has progressed. Keys are unique across the Partner account. Different parameters return 409 idempotency_conflict; an active request returns 409 idempotency_in_progress. Without a key, retries cannot recover the original creation response; check GET /swaps before resubmitting.
1 - 256Response
Accepted user-name swaps.