GetDomainAllUsersForward()
From Rackspace Email & Apps API
This function will return a list of all mailboxes for a domain and any addresses configured to receive forwarded email for mailboxes on the domain.
Input Parameters
Three strings and one result array:
Administrative username, Administrative password, Domain name,
Forward array (formatted as: list[0]="user1: forwardaddress1, forwardaddress2", list[1]="user2:..."...)
Return Values
If successful, the return value of the function will be 1.
Consult the Result Code Table for a list of result codes and their meaning.
