Registro DMARC
v=spf1 a ~all

Registro IPv4
host: z-p3-scontent.flim4-3.fna.fbcdn.net
class: IN
ttl: 2455
type: A
ip: 186.160.224.225

Información TXT
host: z-p3-scontent.flim4-3.fna.fbcdn.net
class: IN
ttl: 7200
type: TXT
txt: v=spf1 a ~all
entries: Array