Question and response
Question
dig _spf.onvol.net. TXT
Answer
_spf.onvol.net. 86400 TXT "v=spf1 include:_melblocks.onvol.net include:_melblocks2.onvol.net -all"
Authority
The response has no authority records.
Additional
. 0 OPT [{Extended_DNS_Error: PROHIBITED}] ; payload 1232, xrcode 0, version 0, flags 0