<mime-type type="application/mbms-reception-report+xml"/>
  <mime-type type="application/mbms-register+xml"/>
  <mime-type type="application/mbms-register-response+xml"/>
  <mime-type type="application/mbms-user-service-description+xml"/>

  <mime-type type="application/mbox">
    <!-- MBOX files start with "From [sender] [date]" -->
    <!-- To avoid false matches, check for other headers after that -->