Registro DMARC
v=DMARC1; p=reject; rua=mailto:mpmiqzah@ag.eu.dmarcadvisor.com

Servidores DNS Principal (mname) y Secundario (rname)
host: gls.es
class: IN
ttl: 21600
type: SOA
mname: ns.gls-group.eu
rname: webmaster.gls-germany.com
serial: 2017112009
refresh: 14400
retry: 7200
expire: 604800
minimum-ttl: 10800

Información TXT
host: gls.es
class: IN
ttl: 21600
type: TXT
txt: v=spf1 -all
entries: Array