Method to create a list.
https://api.wbsrvc.com/List/Create/
POST
| user_key Required |
User Key of the user who initiates the call. Type: string |
| name Required |
Name of the list. Type: string |
| sender_name Required |
Name of the default sender of the list. Type: string |
| sender_email Required |
Email of the default sender of the list. Type: string |
| list_policy Optional |
Accept the anti-spam policy for this list. Type: string - possible value 'accepted', 'declined' |
| client_id Optional |
Client ID of the client in which the list is created. Type: integer |