smtp-s1.keenconnect.eu has no NS records.
NS records for this zone are defined at keenconnect.eu.
NS records for this zone are defined at keenconnect.eu.
Question and response
Question
dig smtp-s1.keenconnect.eu. NS
Answer
The response has no answer records.
Authority
keenconnect.eu. 28800 SOA auth1.keensystems.eu. dns-admin.keensystems.net. 2026031400 14400 1800 604800 28800
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0