Question and response
Question
dig cra.dublin.eircom.net. MX
Answer
cra.dublin.eircom.net. 86400 MX 20 mail1.eircom.net.
Authority
cra.dublin.eircom.net. 86400 NS auth01.ns.eircom.net.
cra.dublin.eircom.net. 86400 NS auth03.ns.eircom.net.
cra.dublin.eircom.net. 86400 NS auth02.ns.eircom.net.
Additional
. 0 OPT [{Extended_DNS_Error: PROHIBITED}] ; payload 1232, xrcode 0, version 0, flags 0