securemx02.mailplug.com has no NS records.
NS records for this zone are defined at mailplug.com.
NS records for this zone are defined at mailplug.com.
Question and response
Question
dig securemx02.mailplug.com. NS
Answer
The response has no answer records.
Authority
mailplug.com. 400 SOA ns.mailplug.com. root.mailplug.com. 2026020400 21600 1800 1209600 400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0