Question and response
Question
dig spf.uchicago.edu. TXT
Answer
spf.uchicago.edu. 3600 TXT "v=spf1 ip4:128.135.176.0/23 ip4:205.208.106.0/24 ip4:67.231.145.199 ip4:148.163.143.251 ?all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0