relay-mail.iscg.net has no NS records.
NS records for this zone are defined at iscg.net.
NS records for this zone are defined at iscg.net.
Question and response
Question
dig relay-mail.iscg.net. NS
Answer
The response has no answer records.
Authority
iscg.net. 86400 SOA ns1.iscg.net. david\.lewis.iscg.net. 2026031100 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0