SendMailDomainUsersAll()
From Rackspace Email & Apps API
This function will send an email to all users on a domain.
Input Parameters
Seven strings:
Administrative username, Administrative password, Domain name, Name of sender, Reply-to address, Mail subject, Body text of email message
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.