Registro DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc.ag@bt.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc.fr@bt.com

Registro IPv4
host: plus.net
class: IN
ttl: 74775
type: A
ip: 212.159.9.2

Registro IPv4
host: plus.net
class: IN
ttl: 74775
type: A
ip: 212.159.8.2

Servidores DNS Principal (mname) y Secundario (rname)
host: plus.net
class: IN
ttl: 21600
type: SOA
mname: ns1.force9.net
rname: hostmaster.plus.net.uk
serial: 2026092301
refresh: 43200
retry: 1800
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: plus.net
class: IN
ttl: 10228
type: MX
pri: 10
target: btgroupcloud-mail-onmicrosoft-com.mail.protection.outlook.com