mx1.almatel.ru has no NS records.
NS records for this zone are defined at almatel.ru.
NS records for this zone are defined at almatel.ru.
Question and response
Question
dig mx1.almatel.ru. NS
Answer
The response has no answer records.
Authority
almatel.ru. 600 SOA ns1.almatel.ru. noc.almatel.ru. 2025102924 7200 3600 3600000 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0