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: cancercentersco.com
class: IN
ttl: 43811
type: A
ip: 159.212.70.174

Servidores DNS Principal (mname) y Secundario (rname)
host: cancercentersco.com
class: IN
ttl: 43811
type: SOA
mname: dali.ihc.com
rname: postmaster.ihc.com
serial: 2023110901
refresh: 10800
retry: 900
expire: 172800
minimum-ttl: 86400

Servidor de Correo
host: cancercentersco.com
class: IN
ttl: 43811
type: MX
pri: 10
target: dali.ihc.com

Servidor de Correo
host: cancercentersco.com
class: IN
ttl: 43811
type: MX
pri: 10
target: pequod.ihc.com

Servidor de Correo
host: cancercentersco.com
class: IN
ttl: 43811
type: MX
pri: 10
target: tethys.ihc.com