Registro DMARC
v=DMARC1; p=none;

Registro IPv4
host: backpages.com
class: IN
ttl: 7200
type: A
ip: 208.91.197.27

Servidores DNS Principal (mname) y Secundario (rname)
host: backpages.com
class: IN
ttl: 7200
type: SOA
mname: NS77.WORLDNIC.com
rname: namehost.WORLDNIC.com
serial: 124021507
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: backpages.com
class: IN
ttl: 7200
type: MX
pri: 10
target: mx1.emailsrvr.com

Servidor de Correo
host: backpages.com
class: IN
ttl: 7200
type: MX
pri: 20
target: mx2.emailsrvr.com