Question and response
Question
dig _spf.vist.is. TXT
Answer
_spf.vist.is. 3600 TXT "v=spf1 ip4:194.105.231.0/27 ip4:194.105.232.0/27 -all"
Authority
vist.is. 172800 NS ns-1345.awsdns-40.org.
vist.is. 172800 NS ns-166.awsdns-20.com.
vist.is. 172800 NS ns-2013.awsdns-59.co.uk.
vist.is. 172800 NS ns-547.awsdns-04.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0