GetAllDomainsMXRecords()
From Rackspace Email & Apps API
This function will report the current MX record settings for all domains associated with the username and password.
Parameters
Two strings, one array of strings
Administrative username, Administrative password,
Domain list (array of strings as in "domainname.com, firstmxrecord, mx preference")
Return Values
If successful, the return value of the function will be 1.
If successful, the domain list should have one or more lines for the domains.
Consult the Result Code Table for a list of result codes and their meaning.
