correo14.openit.es has no MX records.
Question and response
Question
dig correo14.openit.es. MX
Answer
The response has no answer records.
Authority
openit.es. 3600 SOA dns1.spainbs.net. info.spainbs.com. 2025080106 3600 1800 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0