Question and response
Question
dig world-mailserv.com. TXT
Answer
world-mailserv.com. 3600 TXT "v=spf1 ip4:166.78.68.101 ip4:166.78.68.102 ip4:69.72.33.17 ip4:69.20.0.0/17 ip4:159.112.246.164 ip4:159.112.246.163 include:mailgun.org -all"
Authority
world-mailserv.com. 3600 NS ns1.world-serv.com.
world-mailserv.com. 3600 NS ns2.world-serv.net.
world-mailserv.com. 3600 NS ns2.world-serv.com.
world-mailserv.com. 3600 NS ns1.world-serv.net.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0