Registro DMARC
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:itsupport@isg.com; ruf=mailto:itsupport@isg.com

Registro IPv4
host: isg.com
class: IN
ttl: 900
type: A
ip: 45.156.241.21

Servidores DNS Principal (mname) y Secundario (rname)
host: isg.com
class: IN
ttl: 37
type: SOA
mname: ns5.pixelx.de
rname: administrator.isg.com
serial: 2025102912
refresh: 43200
retry: 7200
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: isg.com
class: IN
ttl: 900
type: MX
pri: 5
target: mailgw.isg.com

Información TXT
host: isg.com
class: IN
ttl: 900
type: TXT
txt: v=spf1 a mx ip4:45.156.241.22 include:spf.protection.outlook.com -all
entries: Array