mail1.sandalsmailings.com has no NS records.
NS records for this zone are defined at sandalsmailings.com.
NS records for this zone are defined at sandalsmailings.com.
Question and response
Question
dig mail1.sandalsmailings.com. NS
Answer
The response has no answer records.
Authority
sandalsmailings.com. 300 SOA a1-207.akam.net. hostmaster.sandalsmailings.com. 2024082304 3600 600 604800 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0