u69226.wl.sendgrid.net has no NS records.
NS records for this zone are defined at wl.sendgrid.net.
NS records for this zone are defined at wl.sendgrid.net.
Question and response
Question
dig u69226.wl.sendgrid.net. NS
Answer
The response has no answer records.
Authority
wl.sendgrid.net. 1800 SOA aisha.ns.cloudflare.com. dns.cloudflare.com. 2398158676 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0