Registro DMARC
v=DMARC1;p=reject;sp=none;pct=100;adkim=r;aspf=s;

Registro IPv4
host: wheretoapp.com
class: IN
ttl: 7200
type: A
ip: 162.55.254.100

Servidores DNS Principal (mname) y Secundario (rname)
host: wheretoapp.com
class: IN
ttl: 7200
type: SOA
mname: ns1.your-server.de
rname: postmaster.your-server.de
serial: 2026083100
refresh: 86400
retry: 10800
expire: 3600000
minimum-ttl: 3600

Servidor de Correo
host: wheretoapp.com
class: IN
ttl: 7200
type: MX
pri: 10
target: www602.your-server.de

Información TXT
host: wheretoapp.com
class: IN
ttl: 7200
type: TXT
txt: v=spf1 a mx -all
entries: Array