mail144.dim165.tmdlv.com has no NS records.
NS records for this zone are defined at tmdlv.com.
NS records for this zone are defined at tmdlv.com.
Question and response
Question
dig mail144.dim165.tmdlv.com. NS
Answer
The response has no answer records.
Authority
tmdlv.com. 300 SOA ns-cloud-a1.googledomains.com. cloud-dns-hostmaster.google.com. 1 21600 3600 259200 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0