Registro DMARC
v=DMARC1; p=reject; rua=mailto:ftxyfmr1@ag.us.dmarcian.com; ruf=mailto:ftxyfmr1@fr.us.dmarcian.com; fo=1;

Servidores DNS Principal (mname) y Secundario (rname)
host: spartan-communications.com
class: IN
ttl: 1800
type: SOA
mname: algin.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2372080989
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800