Registro DMARC
v=DMARC1; p=none;

Registro IPv4
host: petroxco.com
class: IN
ttl: 13531
type: A
ip: 162.0.226.8

Servidores DNS Principal (mname) y Secundario (rname)
host: petroxco.com
class: IN
ttl: 13532
type: SOA
mname: ns1.s-w-cl.com
rname: root.petroxco.com
serial: 2026092401
refresh: 3600
retry: 1800
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: petroxco.com
class: IN
ttl: 13532
type: MX
pri: 10
target: mail.petroxco.com

Servidor de Correo
host: petroxco.com
class: IN
ttl: 13532
type: MX
pri: 0
target: mail.petroxco.com

Información TXT
host: petroxco.com
class: IN
ttl: 13533
type: TXT
txt: v=spf1 include:sendgrid.net a mx ip4: 162.0.226.8 ~all
entries: v=spf1 include:sendgrid.net a mx ip4: 162.0.226.8 ~all