Question and response
Question
dig _spf.maildeliver.jp. TXT
Answer
_spf.maildeliver.jp. 86400 TXT "v=spf1 ip4:157.7.228.0/23 ip4:157.7.224.144/28 ip4:163.44.74.0/24 ip4:157.7.174.0/24 ip4:150.95.170.0/23 ip4:118.27.82.0/23 ip4:118.27.67.0/27 ip4:118.27.54.0/23 ~all"
Authority
maildeliver.jp. 86400 NS ns1.gmointernet.com.
maildeliver.jp. 86400 NS ns1.gmointernet.jp.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0