Registro DMARC
v=spf1 ip4:71.177.216.148/32 a mx -all

Servidores DNS Principal (mname) y Secundario (rname)
host: lafn.org
class: IN
ttl: 593
type: SOA
mname: NS13.WORLDNIC.COM
rname: namehost.WORLDNIC.COM
serial: 121030918
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: lafn.org
class: IN
ttl: 594
type: MX
pri: 10
target: mail.sermon-archive.info

Información TXT
host: lafn.org
class: IN
ttl: 594
type: TXT
txt: v=spf1 ip4:71.177.216.148/32 a mx -all
entries: Array