@type t() :: %MailSlurpAPI.Model.DeliveryStatusDto{
  createdAt: DateTime.t(),
  id: String.t(),
  inboxId: String.t() | nil,
  processingTimeMillis: integer() | nil,
  received: DateTime.t() | nil,
  recipients: [String.t()] | nil,
  remoteMtaIp: String.t() | nil,
  reportingMta: String.t() | nil,
  sentId: String.t() | nil,
  smtpResponse: String.t() | nil,
  smtpStatusCode: integer() | nil,
  subject: String.t() | nil,
  updatedAt: DateTime.t(),
  userId: String.t()
}