SALT supports binary attachments for CARRAY typed buffers or CARRAY fields in fielded buffers (VIEW, VIEW32, FML or FML32). By default binary buffers/fields are base64 encoded. As shown in the example below, in order to enable MTOM the configuration must be added to a service or service group in a WSDF file.

<Definition ...>
 <WSBinding id="simpapp_binding">
  <Servicegroup id="simpapp">
   <Service name="toupper">
     <Policy location="salt:ws-mtom.xml"/>
   </Service>
   <Service name="tolower" />
  </Servicegroup>
  ....
 </WSBinding>
</Definition>