Registro DMARC
v=DMARC1; p=none;

Servidores DNS Principal (mname) y Secundario (rname)
host: concyssa.com
class: IN
ttl: 1998
type: SOA
mname: ns1.opticalip.com.pe
rname: hostmaster.opticalip.com.pe
serial: 2026062701
refresh: 43200
retry: 3600
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: concyssa.com
class: IN
ttl: 1999
type: MX
pri: 10
target: mail.concyssa.com

Información TXT
host: concyssa.com
class: IN
ttl: 1999
type: TXT
txt: v=spf1 ip4:190.12.73.204 ~all
entries: