Registro DMARC
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Servidores DNS Principal (mname) y Secundario (rname)
host: tscl3.com
class: IN
ttl: 14400
type: SOA
mname: pdns194.ultradns.biz
rname: web\.admin.uk.tesco.com
serial: 2024031804
refresh: 3600
retry: 600
expire: 86400
minimum-ttl: 86400


Información TXT
host: tscl3.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array
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