smtpdmz1.gtdinternet.com has no NS records.
NS records for this zone are defined at gtdinternet.com.
NS records for this zone are defined at gtdinternet.com.
Question and response
Question
dig smtpdmz1.gtdinternet.com. NS
Answer
The response has no answer records.
Authority
gtdinternet.com. 300 SOA ns.gtdinternet.com. operaciones.gtdinternet.com. 2026021301 7200 360 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0