Question and response
Question
dig _spf.ia.surf.nl. TXT
Answer
_spf.ia.surf.nl. 3600 TXT "v=spf1 ip4:145.100.11.133 ip6:2001:610:108:200f::133 ip4:145.100.11.134 ip6:2001:610:108:200f::134 include:_spf.surfmailfilter.nl include:soverin.net ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0