mail.smspica.com has no NS records.
NS records for this zone are defined at smspica.com.
NS records for this zone are defined at smspica.com.
Question and response
Question
dig mail.smspica.com. NS
Answer
The response has no answer records.
Authority
smspica.com. 1800 SOA lynn.ns.cloudflare.com. dns.cloudflare.com. 2396218781 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0