A request XML packet enabling mailing lists includes the enable-list operation node:
<packet version="1.4.2.0">
<maillist>
<enable-list>
...
</enable-list>
</maillist>
</packet>
The enable-list node is presented by the MaillistEnableListInputType type (maillist.xsd), and its graphical representation is as follows:

maillist.xsd).Remarks
You can enable multiple mailing lists using different filtering rules in a single packet. Add as many enable-list operations as the number of different filtering rules to be applied.
<enable-list>
...
</enable-list>
...
<enable-list>
...
</enable-list>