Question and response
Question
dig em9467.metrocom.cr. NS
Answer
em9467.metrocom.cr. 5 CNAME u14174057.wl058.sendgrid.net.
Authority
wl058.sendgrid.net. 1800 SOA aisha.ns.cloudflare.com. dns.cloudflare.com. 2399062395 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0