Question and response
Question
dig _spf.retarus.com. TXT
Answer
_spf.retarus.com. 86400 TXT "v=spf1 ip4:94.199.88.0/21 ip4:82.135.18.0/23 ip4:62.245.148.0/26 ip4:62.134.45.32/28 ip4:185.93.140.0/23 ip4:103.196.252.0/22 ip4:185.215.216.0/22 ip4:207.126.136.0/22 ip4:199.204.13.32/29 ip4:185.236.172.0/22 ~all"
Authority
retarus.com. 172800 NS ns-1452.awsdns-53.org.
retarus.com. 172800 NS ns-1712.awsdns-22.co.uk.
retarus.com. 172800 NS ns-732.awsdns-27.net.
retarus.com. 172800 NS ns-83.awsdns-10.com.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0