Question and response
Question
dig spf.tetrain.com. TXT
Answer
spf.tetrain.com. 600 TXT "v=spf1 a:server-relay-2.tetrain.com a:server-relay.tetrain.com a:server-relay-1.tetrain.com a:indorama-relay.tetrain.com include:spf.tetra.in ~all"
Authority
tetrain.com. 3600 NS ns40.domaincontrol.com.
tetrain.com. 3600 NS ns39.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0