relay.es.francetelecom.com has no MX records.
Question and response
Question
dig relay.es.francetelecom.com. MX
Answer
The response has no answer records.
Authority
es.francetelecom.com. 3600 SOA dns1.wanadoo.es. hostmaster.wanadoo.es. 2012022066 3600 7200 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0