Question and response
Question
dig smtp25-com.spf-c.smtp25.com. TXT
Answer
smtp25-com.spf-c.smtp25.com. 360 TXT "v=spf1 a:mailers.greenviewdata.com a:zixmail.net a:zixworks.com ip4:67.225.140.0/24 ip4:74.203.184.0/23 ~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