Question and response
Question
dig mailer.chargify.com. NS
Answer
mailer.chargify.com. 5 CNAME u13165.wl.sendgrid.net.
Authority
wl.sendgrid.net. 1333 SOA aisha.ns.cloudflare.com. dns.cloudflare.com. 2397511916 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0