Registro DMARC
v=DMARC1; p=quarantine; adkim=s; aspf=s

Registro IPv4
host: acsclass57.com
class: IN
ttl: 420
type: A
ip: 167.172.6.190

Servidores DNS Principal (mname) y Secundario (rname)
host: acsclass57.com
class: IN
ttl: 420
type: SOA
mname: ns.advancehost.net
rname: tecklong.starhub.net.sg
serial: 1792812374
refresh: 7200
retry: 1800
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: acsclass57.com
class: IN
ttl: 420
type: MX
pri: 10
target: mail.acsclass57.com

Información TXT
host: acsclass57.com
class: IN
ttl: 420
type: TXT
txt: v=spf1 +a +mx +a:timpani.advancehost.net +a:apple.advancehost.net a:fish.advancehost.net +a:timpani.advancehost.net +a:mailgate.advancehost.net +a:marimba.advancehost.net ?all
entries: v=spf1 +a +mx +a:timpani.advancehost.net +a:apple.advancehost.net a:fish.advancehost.net +a:timpani.advancehost.net +a:mailgate.advancehost.net +a:marimba.advancehost.net ?all