Question and response
Question
dig o2.sg.calendly.com. TXT
Answer
o2.sg.calendly.com. 300 TXT "v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0