Question and response
Question
dig ip4-salesforce-spf.hkbn.com.hk. TXT
Answer
ip4-salesforce-spf.hkbn.com.hk. 3600 TXT "v=spf1 ip4:20.24.73.192 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0