_dmarc.tel-b2b.com has no NS records.
NS records for this zone are defined at tel-b2b.com.
NS records for this zone are defined at tel-b2b.com.
Question and response
Question
dig _dmarc.tel-b2b.com. NS
Answer
The response has no answer records.
Authority
tel-b2b.com. 300 SOA x.ns.joker.com. hostmaster.joker.com. 2023120491 14400 3600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0