Registro DMARC
v=DMARC1;p=none;rua=mailto:dmarc@team.instapaper.com

Registro IPv4
host: Instapaper.com
class: IN
ttl: 90
type: A
ip: 44.235.199.250

Registro IPv4
host: Instapaper.com
class: IN
ttl: 90
type: A
ip: 35.162.174.253

Registro IPv4
host: Instapaper.com
class: IN
ttl: 90
type: A
ip: 52.37.48.79

Servidores DNS Principal (mname) y Secundario (rname)
host: Instapaper.com
class: IN
ttl: 900
type: SOA
mname: ns-1077.awsdns-06.org
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: Instapaper.com
class: IN
ttl: 90
type: MX
pri: 20
target: mxb.mailgun.org

Servidor de Correo
host: Instapaper.com
class: IN
ttl: 90
type: MX
pri: 10
target: mxa.mailgun.org

Información TXT
host: Instapaper.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:_spf.google.com include:mailgun.org include:amazonses.com a mx ptr ~all
entries: Array

Información TXT
host: Instapaper.com
class: IN
ttl: 300
type: TXT
txt: google-site-verification=L3fg9YN1Xa-KSF9QCTSkUY_yZKxpO_gpNkI2XrBjYVs
entries: Array

Información TXT
host: Instapaper.com
class: IN
ttl: 300
type: TXT
txt: keybase-site-verification=Vqh2BYsLdYqXiUncKQNYHpzn9EqTfOLqGs94StKJ0qo
entries: Array

Información TXT
host: Instapaper.com
class: IN
ttl: 300
type: TXT
txt: fq07k23gww34t0th8xz81743r8kwfz8n
entries: Array

Información TXT
host: Instapaper.com
class: IN
ttl: 300
type: TXT
txt: wdvdhjh064671mctywk9x63vcfj50r8c
entries: Array