lists.dockersrc.us has no NS records.
NS records for this zone are defined at dockersrc.us.
NS records for this zone are defined at dockersrc.us.
Question and response
Question
dig mail.dockersrc.us. NS
Answer
The response has no answer records.
Authority
dockersrc.us. 38400 SOA dns.dockersrc.us. dns-admin.dockersrc.us. 2026010172 10800 3600 1209600 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0