mail-129.k12insight.com. A RRSIG NSEC
Question and response
Question
dig mail-128.k12insight.com. NSEC
Answer
mail-128.k12insight.com. 600 NSEC mail-129.k12insight.com. A RRSIG NSEC
Authority
k12insight.com. 3600 NS pdns04.domaincontrol.com.
k12insight.com. 3600 NS pdns03.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0