Question and response
Question
dig smtp.timenet.it. NS
Answer
smtp.timenet.it. 5 CNAME smtp.xdslnet.it.
Authority
xdslnet.it. 294 SOA ns1.penteres.it. postmaster.penteres.it. 2026020509 43200 1800 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0