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: att-mail.com
class: IN
ttl: 20758
type: SOA
mname: ns0.attdns.com
rname: eiss-dns.att.com
serial: 2026111301
refresh: 3600
retry: 1800
expire: 2592000
minimum-ttl: 300

Información TXT
host: att-mail.com
class: IN
ttl: 20758
type: TXT
txt: _704kyfi5v81kb4h7ph2ovbcd0xnyzuk
entries: _704kyfi5v81kb4h7ph2ovbcd0xnyzuk

Información TXT
host: att-mail.com
class: IN
ttl: 20758
type: TXT
txt: _fjfx3bq68rwpzbi6cg2u38xv0j3vi7l
entries: _fjfx3bq68rwpzbi6cg2u38xv0j3vi7l

Información TXT
host: att-mail.com
class: IN
ttl: 20758
type: TXT
txt: google-site-verification=C1eAstP1v9OYHzuyt7RQ382Pgb0EorrCCffaqO5Dmrk
entries: google-site-verification=C1eAstP1v9OYHzuyt7RQ382Pgb0EorrCCffaqO5Dmrk

Información TXT
host: att-mail.com
class: IN
ttl: 20758
type: TXT
txt: v=spf1 -all
entries: v=spf1 -all