Question and response
Question
dig _spf.go.net-results.com. TXT
Answer
_spf.go.net-results.com. 3600 TXT "v=spf1 include:sendgrid.net ~all"
Authority
net-results.com. 3600 NS ns44.domaincontrol.com.
net-results.com. 3600 NS ns43.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0