Question and response
Question
dig qq.com. TXT
Answer
qq.com. 7200 TXT "v=spf1 include:spf.mail.qq.com -all"
Authority
qq.com. 86400 NS ns2.qq.com.
qq.com. 86400 NS ns3.qq.com.
qq.com. 86400 NS ns4.qq.com.
qq.com. 86400 NS ns1.qq.com.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0