mail05.ch.umantis.com has no NS records.
NS records for this zone are defined at umantis.com.
NS records for this zone are defined at umantis.com.
Question and response
Question
dig mail05.ch.umantis.com. NS
Answer
The response has no answer records.
Authority
umantis.com. 3600 SOA ns1.umantis.com. hostmaster.umantis.com. 2026022609 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0