<persisters>
  <persister
      name="Email"
      class="LedgerSMB::Workflow::Persister::Email"
      date_format="%Y-%m-%d %H:%M:%S"
      driver="Pg"
      extra_table="email"
      extra_data_field="from,to,cc,bcc,notify,subject,body,sent_date,expansions">
  </persister>
</persisters>
