Question and response
Question
dig _spf.directtalk.com.br. TXT
Answer
_spf.directtalk.com.br. 3600 TXT "v=spf1 ip4:54.236.213.237 ~all"
Authority
directtalk.com.br. 86400 NS ns-1263.awsdns-29.org.
directtalk.com.br. 86400 NS ns-1844.awsdns-38.co.uk.
directtalk.com.br. 86400 NS ns-37.awsdns-04.com.
directtalk.com.br. 86400 NS ns-932.awsdns-52.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0