Registro DMARC
v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email

Registro IPv4
host: backup.com
class: IN
ttl: 114
type: A
ip: 18.209.182.56

Servidores DNS Principal (mname) y Secundario (rname)
host: backup.com
class: IN
ttl: 21114
type: SOA
mname: udns1.ultradns.net
rname: domains.nortonlifelock.com
serial: 2017120701
refresh: 21600
retry: 7200
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: backup.com
class: IN
ttl: 2732
type: MX
pri: 10
target: tus1smtinbpex02.symantec.com

Servidor de Correo
host: backup.com
class: IN
ttl: 2732
type: MX
pri: 10
target: ecl1mtainbpex01.symantec.com

Servidor de Correo
host: backup.com
class: IN
ttl: 2732
type: MX
pri: 10
target: tus1smtinbpex01.symantec.com

Servidor de Correo
host: backup.com
class: IN
ttl: 2732
type: MX
pri: 10
target: tus1smtinbpex03.symantec.com

Información TXT
host: backup.com
class: IN
ttl: 3114
type: TXT
txt: MS=ms33957578
entries: MS=ms33957578

Información TXT
host: backup.com
class: IN
ttl: 3114
type: TXT
txt: v=spf1 ip4:63.245.193.25 ip4:63.245.197.25 ip4:63.245.201.25 ip4:198.6.49.12 ip4:198.6.49.23 ip4:216.10.194.28 ip4:216.10.194.135 ip4:216.10.195.238 ip4:216.10.195.239 ip4:216.10.195.240 ip4:166.98.1.207 ip4:155.64.138.36/30 ip4:166.98.20.16/30 ~all
entries: v=spf1 ip4:63.245.193.25 ip4:63.245.197.25 ip4:63.245.201.25 ip4:198.6.49.12 ip4:198.6.49.23 ip4:216.10.194.28 ip4:216.10.194.135 ip4:216.10.195.238 ip4:216.10.195.239 ip4:216.10.195.240 ip4:166.98.1.207 ip4:155.64.138.36/30 ip4:166.98.20.16/30 ~all