hosting-80.42.rev.fr.colt.net has no MX records.
Question and response
Question
dig hosting-80.42.rev.fr.colt.net. MX
Answer
The response has no answer records.
Authority
rev.fr.colt.net. 600 SOA ns0.coltfrance.com. eudnsmaster.colt.net. 2009062300 21600 3600 604800 600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0