Registro DMARC
v=DMARC1; p=none

Registro IPv4
host: express57.mx
class: IN
ttl: 14593
type: A
ip: 72.52.252.44

Servidores DNS Principal (mname) y Secundario (rname)
host: express57.mx
class: IN
ttl: 79394
type: SOA
mname: ns1.express57.mx
rname: vilcenth\.garcia.express57.mx
serial: 1726756955
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 10800

Servidor de Correo
host: express57.mx
class: IN
ttl: 79394
type: MX
pri: 10
target: mail.express57.mx

Información TXT
host: express57.mx
class: IN
ttl: 79394
type: TXT
txt: google-site-verification=4zM1cPTEWHv7M02uh1f-CsDryDmn1o7f6BeUEuoAbyM
entries: Array

Información TXT
host: express57.mx
class: IN
ttl: 79394
type: TXT
txt: v=spf1 +a +mx +a:dns12.sysop12.com -all
entries: Array