Question and response
Question
dig fxx._domainkey.wicom-telefonica.com. NS
Answer
fxx._domainkey.wicom-telefonica.com. 5 CNAME dkim1.3b429c671977.p436.email.myshopify.com.
dkim1.3b429c671977.p436.email.myshopify.com. 5 CNAME fxx.domainkey.u50588907.wl158.sendgrid.net.
Authority
wl158.sendgrid.net. 545 SOA aisha.ns.cloudflare.com. dns.cloudflare.com. 2400245048 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0