Registro DMARC
v=DMARC1; p=none; rua=mailto:dmarc_agg@dmarc.250ok.net; ruf=mailto:dmarc_fr@dmarc.250ok.net; fo=1; pct=100; rf=afrf

Servidores DNS Principal (mname) y Secundario (rname)
host: energyemails.com
class: IN
ttl: 900
type: SOA
mname: ns-566.awsdns-06.net
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: energyemails.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:u1854344.wl.sendgrid.net -all
entries: Array