Question and response
Question
dig _spf.criaeenvia.com. TXT
Answer
_spf.criaeenvia.com. 3600 TXT "v=spf1 include:_spf.criaenvio.com include:sendgrid.net ~all"
Authority
criaeenvia.com. 3600 NS ns06.domaincontrol.com.
criaeenvia.com. 3600 NS ns05.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0