_spf.onprem.printcom.fi has no NS records.
NS records for this zone are defined at printcom.fi.
NS records for this zone are defined at printcom.fi.
Question and response
Question
dig _spf.onprem.printcom.fi. NS
Answer
The response has no answer records.
Authority
printcom.fi. 900 SOA ns3.printcom.fi. sd.printcom.fi. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0