Registro DMARC
v=spf1 ip4:5.135.81.160 ip4:5.135.81.175 ip4:5.135.81.178 ip4:5.135.81.181 ip4:5.135.81.183 ip4:5.135.81.184 ~all

Servidores DNS Principal (mname) y Secundario (rname)
host: archsymb.com
class: IN
ttl: 3600
type: SOA
mname: archsymb.com
rname: support.archsymb.com
serial: 2003050541
refresh: 7200
retry: 1800
expire: 1209600
minimum-ttl: 3600

Información TXT
host: archsymb.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 ip4:5.135.81.160 ip4:5.135.81.175 ip4:5.135.81.178 ip4:5.135.81.181 ip4:5.135.81.183 ip4:5.135.81.184 ~all
entries: Array