Question and response
Question
dig spf-proofpoint.isc.upenn.edu. TXT
Answer
spf-proofpoint.isc.upenn.edu. 900 TXT "v=spf1 ip4:148.163.133.158 ip4:148.163.137.158 ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0