Question and response
Question
dig mail.oo155.com. TXT
Answer
mail.oo155.com. 3600 TXT "v=spf1 a mx -all"
Authority
oo155.com. 172800 NS ns-1321.awsdns-37.org.
oo155.com. 172800 NS ns-1797.awsdns-32.co.uk.
oo155.com. 172800 NS ns-389.awsdns-48.com.
oo155.com. 172800 NS ns-640.awsdns-16.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0