Registro IPv4
host: portcalls.com
class: IN
ttl: 300
type: A
ip: 173.231.251.20

Servidores DNS Principal (mname) y Secundario (rname)
host: portcalls.com
class: IN
ttl: 1800
type: SOA
mname: elma.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2350492360
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: portcalls.com
class: IN
ttl: 300
type: MX
pri: 10
target: mail.portcalls.com

Información TXT
host: portcalls.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 +a +mx +ip4:173.231.251.20 ~all
entries: Array