Question and response
Question
dig _netblocksc01.imdlv.net. TXT
Answer
_netblocksc01.imdlv.net. 3599 TXT "v=spf1 ip4:77.245.145.128/28 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0