Registro DMARC
v=DMARC1; p=none; fo=1; rua=mailto:misadmin@ptotinc.com

Servidores DNS Principal (mname) y Secundario (rname)
host: ptotinc.com
class: IN
ttl: 600
type: SOA
mname: ns1.ix1000.com
rname: root.ptotinc.com
serial: 2015081101
refresh: 600
retry: 3600
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: ptotinc.com
class: IN
ttl: 600
type: MX
pri: 10
target: antispam.ptotinc.com

Información TXT
host: ptotinc.com
class: IN
ttl: 600
type: TXT
txt: v=spf1 a mx ip4:125.227.169.22 ~all
entries: Array