mail-64.sogolytics.com has no NS records.
NS records for this zone are defined at sogolytics.com.
NS records for this zone are defined at sogolytics.com.
Question and response
Question
dig mail-64.sogolytics.com. NS
Answer
The response has no answer records.
Authority
sogolytics.com. 1800 SOA cass.ns.cloudflare.com. dns.cloudflare.com. 2400252961 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0