Question and response
Question
dig spf.mailtastic.com. TXT
Answer
spf.mailtastic.com. 3600 TXT "v=spf1 ip4:51.137.200.62/32 ip4:40.127.176.5/32 ip4:13.95.230.74/32 ip4:20.79.130.30/32 ip4:20.113.113.58/32 ip4:20.79.230.220/32 ip4:20.218.193.218/32 -all"
Authority
mailtastic.com. 3600 NS ns78.domaincontrol.com.
mailtastic.com. 3600 NS ns77.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0