Question and response
Question
dig dnsserv.nu. MX
Answer
dnsserv.nu. 86400 MX 10 mx.mailserv.se.
dnsserv.nu. 86400 MX 10 mx.mailserv.nu.
Authority
dnsserv.nu. 86400 NS ns1.dnsserv.eu.
dnsserv.nu. 86400 NS ns1.dnsserv.nu.
dnsserv.nu. 86400 NS ns1.dnsserv.se.
dnsserv.nu. 86400 NS ns1.dnsserv.uk.
dnsserv.nu. 86400 NS ns1.dnsserv.name.
Additional
ns1.dnsserv.nu. 172800 A 31.22.94.70
ns1.dnsserv.nu. 172800 AAAA 2a0c:5700:5353:0:0:0:0:70
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0