mta7898.send.vibriefingdelivers.com has no NS records.
NS records for this zone are defined at vibriefingdelivers.com.
NS records for this zone are defined at vibriefingdelivers.com.
Question and response
Question
dig mta7898.send.vibriefingdelivers.com. NS
Answer
The response has no answer records.
Authority
vibriefingdelivers.com. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1748297292 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0