Question and response
Question
dig _spf.smail.tfn.net.tw. TXT
Answer
_spf.smail.tfn.net.tw. 86400 TXT "v=spf1 ip4:211.78.215.208 ip4:211.78.215.207 ip4:211.78.215.251 ~all"
Authority
tfn.net.tw. 86400 NS dns2.tfn.net.tw.
tfn.net.tw. 86400 NS dns1.tfn.net.tw.
Additional
dns1.tfn.net.tw. 86400 A 211.78.215.137
dns2.tfn.net.tw. 86400 A 211.78.215.200
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0