Registro DMARC
v=DMARC1; p=reject; rua=mailto:abr.it@civica.co.uk

Registro IPv4
host: durhamkeyoptions.co.uk
class: IN
ttl: 1800
type: A
ip: 52.142.150.107

Servidores DNS Principal (mname) y Secundario (rname)
host: durhamkeyoptions.Co.uk
class: IN
ttl: 9898
type: SOA
mname: ns0.dnsmadeeasy.com
rname: dns.dnsmadeeasy.com
serial: 2008010151
refresh: 43200
retry: 3600
expire: 1209600
minimum-ttl: 180

Información TXT
host: durhamkeyoptions.co.uk
class: IN
ttl: 1800
type: TXT
txt: v=spf1 mx ip4:51.140.158.8 -all
entries: Array

Información TXT
host: durhamkeyoptions.co.uk
class: IN
ttl: 1800
type: TXT
txt: 2019020415395864ujptdtmeqnm5y4olhxliz23rb5s5tch4gxob3iqqmpxc1wbr
entries: Array