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

Registro IPv4
host: bestbuy.com.mx
class: IN
ttl: 90
type: A
ip: 23.223.105.42

Servidores DNS Principal (mname) y Secundario (rname)
host: bestbuy.com.mx
class: IN
ttl: 28800
type: SOA
mname: tag1.bestbuy.com.bestbuy.com.mx
rname: please_set_email\.absolutely\.nowhere.bestbuy.com.mx
serial: 143
refresh: 10800
retry: 3600
expire: 2419200
minimum-ttl: 900

Información TXT
host: bestbuy.com.mx
class: IN
ttl: 28800
type: TXT
txt: v=spf1 -all
entries: Array