A sending domain. records lists the DNS records to publish (empty on list and delete responses); capabilities is the %{"sending" => ..., "receiving" => ...} map as returned by the API.
records
capabilities
%{"sending" => ..., "receiving" => ...}
@type t() :: %MillionSend.Domains.Domain{ capabilities: term(), click_tracking: term(), created_at: term(), deleted: term(), id: term(), name: term(), object: term(), open_tracking: term(), records: term(), region: term(), status: term(), tracking_subdomain: term() }