Registro DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Servidores DNS Principal (mname) y Secundario (rname)
host: a-toppolymers.net
class: IN
ttl: 4600
type: SOA
mname: ns.inwx.de
rname: hostmaster.inwx.de
serial: 2024073103
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Información TXT
host: a-toppolymers.net
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array