Registro DMARC
v=DMARC1; p=none; pct=100; rua=mailto:re+yy4bkel2e8n@dmarc.postmarkapp.com; sp=none; aspf=r;

Registro IPv4
host: leanpub.com
class: IN
ttl: 90
type: A
ip: 18.172.213.82

Registro IPv4
host: leanpub.com
class: IN
ttl: 90
type: A
ip: 18.172.213.127

Registro IPv4
host: leanpub.com
class: IN
ttl: 90
type: A
ip: 18.172.213.100

Registro IPv4
host: leanpub.com
class: IN
ttl: 90
type: A
ip: 18.172.213.31

Servidores DNS Principal (mname) y Secundario (rname)
host: leanpub.com
class: IN
ttl: 900
type: SOA
mname: ns-576.awsdns-08.net
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: leanpub.com
class: IN
ttl: 14400
type: MX
pri: 0
target: aspmx.l.google.com

Información TXT
host: leanpub.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 a mx include:spf.mtasv.net include:spf.mail.intercom.io include:servers.mcsv.net include:_spf.google.com -all
entries: Array

Información TXT
host: leanpub.com
class: IN
ttl: 300
type: TXT
txt: google-site-verification=zoRXbAIm861EKd5VTW9pSjE9SmF0G12EWQit--QX-RI
entries: Array