mail1231.emails.generalmills.com has no NS records.
NS records for this zone are defined at generalmills.com.
NS records for this zone are defined at generalmills.com.
Question and response
Question
dig mail1231.emails.generalmills.com. NS
Answer
The response has no answer records.
Authority
generalmills.com. 900 SOA mgoextdns1.genmills.com. dom\.admin.genmills.com. 15908 900 600 2419200 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0