Registro DMARC
v=DMARC1; p=none;

Registro IPv4
host: usalumni.org.pl
class: IN
ttl: 9775
type: A
ip: 213.155.160.20

Servidores DNS Principal (mname) y Secundario (rname)
host: usalumni.org.pl
class: IN
ttl: 16976
type: SOA
mname: ns1.aci.com.pl
rname: m.blaszczak.man.szczecin.pl
serial: 2026101102
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: usalumni.org.pl
class: IN
ttl: 9776
type: MX
pri: 0
target: usalumni.org.pl

Información TXT
host: usalumni.org.pl
class: IN
ttl: 9776
type: TXT
txt: v=spf1 +mx +a +ip4:213.155.160.0/27 -all
entries: Array