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

Registro IPv4
host: stpetersburgcardiology.org
class: IN
ttl: 416
type: A
ip: 75.2.103.146

Registro IPv4
host: stpetersburgcardiology.org
class: IN
ttl: 416
type: A
ip: 99.83.188.150

Servidores DNS Principal (mname) y Secundario (rname)
host: stpetersburgcardiology.org
class: IN
ttl: 3416
type: SOA
mname: ns07.gcd-dns.com
rname: dns.jomax.net
serial: 2025060602
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 600

Servidor de Correo
host: stpetersburgcardiology.org
class: IN
ttl: 3417
type: MX
pri: 0
target: noemail.invalid

Información TXT
host: stpetersburgcardiology.org
class: IN
ttl: 3417
type: TXT
txt: v=spf1 -all
entries: Array