admin.lianamailer.com has no NS records.
NS records for this zone are defined at lianamailer.com.
NS records for this zone are defined at lianamailer.com.
Question and response
Question
dig admin.lianamailer.com. NS
Answer
The response has no answer records.
Authority
lianamailer.com. 1800 SOA ian.ns.cloudflare.com. dns.cloudflare.com. 2397500796 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0