Registro DMARC
v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Registro IPv4
host: ameritech.net
class: IN
ttl: 14400
type: A
ip: 204.60.203.227

Servidores DNS Principal (mname) y Secundario (rname)
host: ameritech.net
class: IN
ttl: 14400
type: SOA
mname: ns0.attdns.com
rname: eiss-dns.att.com
serial: 2025080601
refresh: 3600
retry: 1800
expire: 2592000
minimum-ttl: 300

Servidor de Correo
host: ameritech.net
class: IN
ttl: 14400
type: MX
pri: 10
target: mx-att.mail.am0.yahoodns.net

Información TXT
host: ameritech.net
class: IN
ttl: 14400
type: TXT
txt: v=spf1 include:_ipspf.yahoo.com ~all
entries: Array