Registro DMARC
v=DMARC1; p=reject; rua=mailto:a@dmarc.facebookmail.com; pct=100

Servidor de Correo
host: mail.instagram.com
class: IN
ttl: 2800
type: MX
pri: 10
target: smtpin.vvv.facebook.com

Información TXT
host: mail.instagram.com
class: IN
ttl: 100
type: TXT
txt: v=spf1 include:_spf.facebook.com -all
entries: Array

Información TXT
host: mail.instagram.com
class: IN
ttl: 100
type: TXT
txt: google-site-verification=cL9ZyGuaz2vdqTuBw537IXLUjJqrM5-dGqI0Lm8RiFk
entries: Array

Información TXT
host: mail.instagram.com
class: IN
ttl: 100
type: TXT
txt: apple-domain-verification=6O9Np56Cibok9HMChzdgS0BesY-8MfhtRDEitEnI3bk
entries: Array