Question and response
Question
dig area.ba.cnr.it. MX
Answer
area.ba.cnr.it. 600 MX 40 smtpext.ba.cnr.it.
Authority
The response has no authority records.
Additional
. 0 OPT [{Extended_DNS_Error: PROHIBITED}] ; payload 1232, xrcode 0, version 0, flags 0