Registro DMARC
v=spf1 mix include:coxmail.com ?all

Registro IPv4
host: tzu.crissoptical.com
class: IN
ttl: 7200
type: A
ip: 208.91.197.26

Información TXT
host: tzu.crissoptical.com
class: IN
ttl: 7200
type: TXT
txt: v=spf1 mix include:coxmail.com ?all
entries: Array