Two easy ways to get information about MX Server:
In case you have a real operating system:
dig -t MX cnn.com
or
host cnn.com
In case you use windows:
nslookup -querytype=MX cnn.com
In case you have a real operating system:
dig -t MX cnn.com
or
host cnn.com
In case you use windows:
nslookup -querytype=MX cnn.com