mail.backupexpert.pl has no NS records.
NS records for this zone are defined at backupexpert.pl.
NS records for this zone are defined at backupexpert.pl.
Question and response
Question
dig mail.backupexpert.pl. NS
Answer
The response has no answer records.
Authority
backupexpert.pl. 60 SOA dns113.ovh.net. tech.ovh.net. 2025050512 86400 3600 3600000 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0