Registro DMARC
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:bccff4b680634569bb2e0b488f1e91a8@dmarc-reports.cloudflare.net;

Servidores DNS Principal (mname) y Secundario (rname)
host: srvif.com
class: IN
ttl: 1800
type: SOA
mname: becky.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2372253968
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: srvif.com
class: IN
ttl: 300
type: MX
pri: 0
target: mail.srvif.com

Información TXT
host: srvif.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array