spf.portal.nitronet.pl has no NS records.
NS records for this zone are defined at portal.nitronet.pl.
NS records for this zone are defined at portal.nitronet.pl.
Question and response
Question
dig spf.portal.nitronet.pl. NS
Answer
The response has no answer records.
Authority
portal.nitronet.pl. 3600 SOA dns.nitronet.pl. hostmaster.portal.nitronet.pl. 2025090501 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0