Question and response
Question
dig greenviewdata-com.spf-b.smtp25.com. TXT
Answer
greenviewdata-com.spf-b.smtp25.com. 360 TXT "v=spf1 ip4:67.228.91.90 ip4:67.228.158.174 ip4:174.36.44.116 ip4:174.36.44.117 ip4:174.36.44.118 ip4:174.36.44.119 ip4:50.201.66.168/24 ~all"
Authority
smtp25.com. 172800 NS ns-1353.awsdns-41.org.
smtp25.com. 172800 NS ns-1553.awsdns-02.co.uk.
smtp25.com. 172800 NS ns-254.awsdns-31.com.
smtp25.com. 172800 NS ns-533.awsdns-02.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0