Question and response
Question
dig mx.comtenidos.com. CERT
Answer
The response has no answer records.
Authority
comtenidos.com. 900 SOA dns.comtenidos.com. dominios.orange.es. 2016041106 7200 7200 2592000 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0