mail.telasera.com has no NS records.
NS records for this zone are defined at telasera.com.
NS records for this zone are defined at telasera.com.
Question and response
Question
dig mail.telasera.com. NS
Answer
The response has no answer records.
Authority
telasera.com. 3600 SOA ns1.dnsafrica.com. hostmaster.telasera.com. 2025060301 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0