SetDigestSubscriberList: sets the digest subscribers for the given list.
o Return Type: GenericResult
o Parameters:
• AuthUserName: User name used to perform this function. Requires system
administrator or domain administrator privileges.
• AuthPassword: Password for the username
• DomainName: The domain name for which to modify the list
• ListName: The name of the list to modify
• Subscribers: An array of email addresses to set as the subscriber list