mail.infobunker.com has no NS records.
NS records for this zone are defined at infobunker.com.
NS records for this zone are defined at infobunker.com.
Question and response
Question
dig mail.infobunker.com. NS
Answer
The response has no answer records.
Authority
infobunker.com. 3600 SOA ns1.infobunker.com. hostmaster.infobunker.com. 2025121701 28800 7200 2419200 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0