smtp01.sumtotalsystems.com has no NS records.
NS records for this zone are defined at sumtotalsystems.com.
NS records for this zone are defined at sumtotalsystems.com.
Question and response
Question
dig smtp01.sumtotalsystems.com. NS
Answer
The response has no answer records.
Authority
sumtotalsystems.com. 300 SOA a1-53.akam.net. hostmaster.sumtotalsystems.com. 2022112784 3600 600 604800 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0