Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@backagent.com;

Registro IPv4
host: backagent.com
class: IN
ttl: 300
type: A
ip: 128.136.159.52

Servidores DNS Principal (mname) y Secundario (rname)
host: backagent.com
class: IN
ttl: 900
type: SOA
mname: ns-104.awsdns-13.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: backagent.com
class: IN
ttl: 300
type: MX
pri: 20
target: mx2.emailsrvr.com

Servidor de Correo
host: backagent.com
class: IN
ttl: 300
type: MX
pri: 10
target: mx1.emailsrvr.com

Información TXT
host: backagent.com
class: IN
ttl: 300
type: TXT
txt: google-site-verification=mY2YmlndgXDyxOH3BKsZIS8vKaYaC6nIwyddjC8rMhY
entries: Array

Información TXT
host: backagent.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 mx include:emailsrvr.com include:_spf.google.com include:servers.mcsv.net ~all
entries: Array