@type t() :: %ApolloSignal.Types.VerificationRecordsResponse{
  bimi: ApolloSignal.Types.DnsRecordResponse.t() | nil,
  dkim: [ApolloSignal.Types.DkimRecordResponse.t()],
  dmarc_recommended: ApolloSignal.Types.DnsRecordResponse.t() | nil,
  mail_from_mx: ApolloSignal.Types.DnsRecordResponse.t(),
  mail_from_spf: ApolloSignal.Types.DnsRecordResponse.t(),
  tracking_cname: ApolloSignal.Types.DnsRecordResponse.t() | nil
}