sendmail.vmcl.ru has no NS records.
NS records for this zone are defined at vmcl.ru.
NS records for this zone are defined at vmcl.ru.
Question and response
Question
dig sendmail.vmcl.ru. NS
Answer
The response has no answer records.
Authority
vmcl.ru. 300 SOA ns1.fr.ru. internet.action-media.ru. 2021092270 14400 180 2592000 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0