_dmarc.mta-q2.nelnet.net. A TXT RRSIG NSEC
Question and response
Question
dig mta-q2.nelnet.net. NSEC
Answer
mta-q2.nelnet.net. 3600 NSEC _dmarc.mta-q2.nelnet.net. A TXT RRSIG NSEC
Authority
nelnet.net. 3600 NS pdns04.domaincontrol.com.
nelnet.net. 3600 NS pdns03.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0