mail.uamulet.com has no NS records.
NS records for this zone are defined at uamulet.com.
NS records for this zone are defined at uamulet.com.
Question and response
Question
dig mail.uamulet.com. NS
Answer
The response has no answer records.
Authority
uamulet.com. 1800 SOA andy.ns.cloudflare.com. dns.cloudflare.com. 2397432075 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0