mail.michigandigital.com has no NS records.
NS records for this zone are defined at michigandigital.com.
NS records for this zone are defined at michigandigital.com.
Question and response
Question
dig mail.michigandigital.com. NS
Answer
The response has no answer records.
Authority
michigandigital.com. 1800 SOA monika.ns.cloudflare.com. dns.cloudflare.com. 2399413119 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0