Question and response
Question
dig mta2.nelnet.net. TXT
Answer
mta2.nelnet.net. 3600 TXT "v=spf1 a ip4:216.69.110.63 -all"
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