mta3.emailinfo.hp.com has no NS records.
NS records for this zone are defined at emailinfo.hp.com.
NS records for this zone are defined at emailinfo.hp.com.
Question and response
Question
dig mta3.emailinfo.hp.com. NS
Answer
The response has no answer records.
Authority
emailinfo.hp.com. 900 SOA txa01hpiibpe.ams.hp.net. hostmaster.hp.com. 443241485 3600 3600 2419200 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0